1. Problem: If kilos of pork costs Php475.15, how much will kilos cost? Since the problem is incomplete (missing the number of kilos), we cannot solve it directly. However, if we assume the cost is for 1 kilo, then the cost for $x$ kilos is calculated by the formula: $$\text{Cost} = 475.15 \times x$$ where $x$ is the number of kilos. 2. Problem: A recipe requires 4 cups of flour for 1 cup of milk. How many cups of flour are needed if the baker uses 3 cups of milk? Step 1: State the problem. We need to find the amount of flour needed when the milk quantity changes, given the original ratio. Step 2: Understand the formula for inverse proportions. For direct proportions, the ratio remains constant: $$\frac{\text{flour}}{\text{milk}} = \text{constant}$$ Step 3: Given 4 cups flour for 1 cup milk, the ratio is: $$\frac{4}{1} = 4$$ Step 4: For 3 cups of milk, flour needed is: $$\text{flour} = 4 \times 3 = 12$$ Step 5: Conclusion. The baker needs 12 cups of flour for 3 cups of milk. Final answer: 12 cups of flour.