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Finding the Fourth Proportional to 45,073.87, 67,614.65 and 11,793.90

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Solution

The fourth proportional to 45,073.87, 67,614.65 and 11,793.90 is: 17,691.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,073.87 : 67,614.65 = 11,793.90 : x
  2. Step 2: Convert to fraction form
    45,073.87/67,614.65 = 11,793.90/x
  3. Step 3: Cross multiply
    45,073.87x = 67,614.65 × 11,793.90
  4. Step 4: Simplify right side
    45,073.87x = 797,440,659.45
  5. Step 5: Solve for x
    x = 797,440,659.45/45,073.87
  6. Step 6: Final answer
    x = 17,691.86

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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.