Finding the Fourth Proportional to 47,055.96, 70,565.10 and 20,742
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Solution
The fourth proportional to 47,055.96, 70,565.10 and 20,742 is: 31,104.70
Step by Step Solution
- Step 1: Write the proportion equation
47,055.96 : 70,565.10 = 20,742 : x - Step 2: Convert to fraction form
47,055.96/70,565.10 = 20,742/x - Step 3: Cross multiply
47,055.96x = 70,565.10 × 20,742 - Step 4: Simplify right side
47,055.96x = 1,463,661,304.20 - Step 5: Solve for x
x = 1,463,661,304.20/47,055.96 - Step 6: Final answer
x = 31,104.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.