1. **State the problem:**
Find the value of $\log_3(b) \times \log_b(27)$.
2. **Recall the change of base formula:**
For any positive numbers $a$, $b$, and $c$ (with $a \neq 1$, $b \neq 1$),
$$\log_a(c) = \frac{\log_b(c)}{\log_b(a)}$$
3. **Rewrite $\log_b(27)$ using base 3:**
Since 27 is a power of 3, $27 = 3^3$, so
$$\log_b(27) = \log_b(3^3) = 3 \log_b(3)$$
4. **Express $\log_b(3)$ in terms of $\log_3(b)$:**
Using the change of base formula,
$$\log_b(3) = \frac{1}{\log_3(b)}$$
5. **Substitute back into the expression:**
$$\log_3(b) \times \log_b(27) = \log_3(b) \times 3 \log_b(3) = \log_3(b) \times 3 \times \frac{1}{\log_3(b)}$$
6. **Simplify by canceling $\log_3(b)$:**
$$= 3 \times \cancel{\log_3(b)} \times \frac{1}{\cancel{\log_3(b)}} = 3$$
**Final answer:**
$$\log_3(b) \times \log_b(27) = 3$$
Logarithm Product C1D388
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