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Finding the Fourth Proportional to 62,691.53, 86,515.65 and 34,397.19

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Solution

The fourth proportional to 62,691.53, 86,515.65 and 34,397.19 is: 47,468.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,691.53 : 86,515.65 = 34,397.19 : x
  2. Step 2: Convert to fraction form
    62,691.53/86,515.65 = 34,397.19/x
  3. Step 3: Cross multiply
    62,691.53x = 86,515.65 × 34,397.19
  4. Step 4: Simplify right side
    62,691.53x = 2,975,895,251.02
  5. Step 5: Solve for x
    x = 2,975,895,251.02/62,691.53
  6. Step 6: Final answer
    x = 47,468.86

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.