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Finding the Fourth Proportional to 87,793.50, 131,691.69 and 25,470.30

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Solution

The fourth proportional to 87,793.50, 131,691.69 and 25,470.30 is: 38,205.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,793.50 : 131,691.69 = 25,470.30 : x
  2. Step 2: Convert to fraction form
    87,793.50/131,691.69 = 25,470.30/x
  3. Step 3: Cross multiply
    87,793.50x = 131,691.69 × 25,470.30
  4. Step 4: Simplify right side
    87,793.50x = 3,354,226,851.81
  5. Step 5: Solve for x
    x = 3,354,226,851.81/87,793.50
  6. Step 6: Final answer
    x = 38,205.87

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1.5x scale

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.