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Finding the Fourth Proportional to 57,572.59, 86,361.96 and 18,132.77

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Solution

The fourth proportional to 57,572.59, 86,361.96 and 18,132.77 is: 27,200.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,572.59 : 86,361.96 = 18,132.77 : x
  2. Step 2: Convert to fraction form
    57,572.59/86,361.96 = 18,132.77/x
  3. Step 3: Cross multiply
    57,572.59x = 86,361.96 × 18,132.77
  4. Step 4: Simplify right side
    57,572.59x = 1,565,981,557.43
  5. Step 5: Solve for x
    x = 1,565,981,557.43/57,572.59
  6. Step 6: Final answer
    x = 27,200.12

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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.