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Finding the Fourth Proportional to 57,781.80, 86,607.90 and 24,496.20

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Solution

The fourth proportional to 57,781.80, 86,607.90 and 24,496.20 is: 36,716.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,781.80 : 86,607.90 = 24,496.20 : x
  2. Step 2: Convert to fraction form
    57,781.80/86,607.90 = 24,496.20/x
  3. Step 3: Cross multiply
    57,781.80x = 86,607.90 × 24,496.20
  4. Step 4: Simplify right side
    57,781.80x = 2,121,564,439.98
  5. Step 5: Solve for x
    x = 2,121,564,439.98/57,781.80
  6. Step 6: Final answer
    x = 36,716.83

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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.