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Finding the Fourth Proportional to 57,773.40, 86,660.10 and 37,728.60

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Solution

The fourth proportional to 57,773.40, 86,660.10 and 37,728.60 is: 56,592.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,773.40 : 86,660.10 = 37,728.60 : x
  2. Step 2: Convert to fraction form
    57,773.40/86,660.10 = 37,728.60/x
  3. Step 3: Cross multiply
    57,773.40x = 86,660.10 × 37,728.60
  4. Step 4: Simplify right side
    57,773.40x = 3,269,564,248.86
  5. Step 5: Solve for x
    x = 3,269,564,248.86/57,773.40
  6. Step 6: Final answer
    x = 56,592.90

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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.