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Finding the Fourth Proportional to 57,780.60, 86,627.70 and 24,473.40

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Solution

The fourth proportional to 57,780.60, 86,627.70 and 24,473.40 is: 36,691.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,780.60 : 86,627.70 = 24,473.40 : x
  2. Step 2: Convert to fraction form
    57,780.60/86,627.70 = 24,473.40/x
  3. Step 3: Cross multiply
    57,780.60x = 86,627.70 × 24,473.40
  4. Step 4: Simplify right side
    57,780.60x = 2,120,074,353.18
  5. Step 5: Solve for x
    x = 2,120,074,353.18/57,780.60
  6. Step 6: Final answer
    x = 36,691.80

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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.