1. **State the problem:** We have a table of equivalent ratios with some missing values. The table is:
| ? | 14 |
| 6 | 28 |
| 8 | 35 |
| 10 | ? |
| 12 | 49 |
We need to find the missing values in the first column (top value) and the second column (value corresponding to 10).
2. **Identify the relationship:** The handwritten note "x2" suggests the second column values are twice the first column values.
3. **Check the given pairs:**
- For 6 and 28: $28 \div 6 = \frac{28}{6} = 4.666...$ which is not 2.
- For 8 and 35: $35 \div 8 = 4.375$ which is not 2.
- For 10 and ?: unknown.
- For 12 and 49: $49 \div 12 = 4.0833...$ which is not 2.
So the "x2" note might mean something else or be misplaced.
4. **Check if the ratios are equivalent:**
Calculate the ratio of second column to first column for each known pair:
- $\frac{14}{?}$ unknown
- $\frac{28}{6} = \frac{14}{3}$
- $\frac{35}{8}$
- $\frac{?}{10}$ unknown
- $\frac{49}{12}$
5. **Try to find a common ratio:**
Check if the ratios $\frac{28}{6}$, $\frac{35}{8}$, and $\frac{49}{12}$ are equivalent.
Calculate decimals:
- $\frac{28}{6} = 4.666...$
- $\frac{35}{8} = 4.375$
- $\frac{49}{12} = 4.0833...$
They are not equal, so the ratios are not equivalent.
6. **Try to find a pattern in the second column:**
Look at the second column: 14, 28, 35, ?, 49
- 14 to 28 doubles (x2)
- 28 to 35 increases by 7
- 35 to ? unknown
- ? to 49 unknown
7. **Try to find a pattern in the first column:**
6, 8, 10, 12
- Increases by 2 each time
8. **Assuming the ratio is constant, find the ratio using known pairs:**
Try $\frac{14}{6} = 2.333...$
Try $\frac{28}{8} = 3.5$
Try $\frac{35}{10} = 3.5$
Try $\frac{49}{12} = 4.0833...$
No constant ratio.
9. **Since the problem states "Fill in the Missing Values in the Equivalent Ratio", assume the ratio is $\frac{14}{6} = \frac{x}{8} = \frac{y}{10} = \frac{49}{12}$**
10. **Find the ratio $k$ such that $\frac{14}{6} = k$:**
$$k = \frac{14}{6} = \frac{7}{3}$$
11. **Find missing values using $k = \frac{7}{3}$:**
- For 8: $x = 8 \times k = 8 \times \frac{7}{3} = \frac{56}{3} = 18.666...$
- For 10: $y = 10 \times k = 10 \times \frac{7}{3} = \frac{70}{3} = 23.333...$
- For top value (corresponding to 14): $z$ such that $\frac{z}{?} = k$ but missing first value is unknown.
12. **Check if 49 corresponds to 12 with ratio $k$:**
$$12 \times k = 12 \times \frac{7}{3} = 28$$
But given is 49, so the ratio is not consistent.
13. **Conclusion:** The problem likely wants the missing values in the first column and second column assuming the ratio between columns is constant.
14. **Use the pairs with known values to find the ratio:**
Given pairs:
- (6,14)
- (8,28)
- (10,35)
- (12,49)
Check ratios:
- $\frac{14}{6} = 2.333...$
- $\frac{28}{8} = 3.5$
- $\frac{35}{10} = 3.5$
- $\frac{49}{12} = 4.0833...$
Ratios are not equal, but 28/8 and 35/10 both equal 3.5.
15. **Assuming ratio is 3.5, find missing top value:**
$$\text{top value} = \frac{14}{3.5} = 4$$
16. **Check if 12 corresponds to 49 with ratio 3.5:**
$$12 \times 3.5 = 42 \neq 49$$
So 49 is inconsistent.
17. **Final missing values:**
- Top value in first column: 4
- Value corresponding to 10 in second column: 35 (given)
**Answer:**
Top value = 4
Value corresponding to 10 = 35
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**Summary:** The missing top value in the first column is 4, assuming the ratio between columns is 3.5 for the middle values.
Equivalent Ratios 5156A7
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