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Finding the Fourth Proportional to 62,487.65, 86,398.85 and 54,614.45

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Solution

The fourth proportional to 62,487.65, 86,398.85 and 54,614.45 is: 75,512.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,487.65 : 86,398.85 = 54,614.45 : x
  2. Step 2: Convert to fraction form
    62,487.65/86,398.85 = 54,614.45/x
  3. Step 3: Cross multiply
    62,487.65x = 86,398.85 × 54,614.45
  4. Step 4: Simplify right side
    62,487.65x = 4,718,625,400.31
  5. Step 5: Solve for x
    x = 4,718,625,400.31/62,487.65
  6. Step 6: Final answer
    x = 75,512.93

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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.