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Finding the Fourth Proportional to 62,354.39, 86,077.38 and 39,724.41

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Solution

The fourth proportional to 62,354.39, 86,077.38 and 39,724.41 is: 54,837.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,354.39 : 86,077.38 = 39,724.41 : x
  2. Step 2: Convert to fraction form
    62,354.39/86,077.38 = 39,724.41/x
  3. Step 3: Cross multiply
    62,354.39x = 86,077.38 × 39,724.41
  4. Step 4: Simplify right side
    62,354.39x = 3,419,373,134.85
  5. Step 5: Solve for x
    x = 3,419,373,134.85/62,354.39
  6. Step 6: Final answer
    x = 54,837.73

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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.