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Finding the Fourth Proportional to 62,856.73, 86,747.21 and 36,007.89

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Solution

The fourth proportional to 62,856.73, 86,747.21 and 36,007.89 is: 49,693.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,856.73 : 86,747.21 = 36,007.89 : x
  2. Step 2: Convert to fraction form
    62,856.73/86,747.21 = 36,007.89/x
  3. Step 3: Cross multiply
    62,856.73x = 86,747.21 × 36,007.89
  4. Step 4: Simplify right side
    62,856.73x = 3,123,583,561.75
  5. Step 5: Solve for x
    x = 3,123,583,561.75/62,856.73
  6. Step 6: Final answer
    x = 49,693.70

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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.