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Finding the Fourth Proportional to 41,387, 62,086.98 and 13,691.48

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Solution

The fourth proportional to 41,387, 62,086.98 and 13,691.48 is: 20,539.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,387 : 62,086.98 = 13,691.48 : x
  2. Step 2: Convert to fraction form
    41,387/62,086.98 = 13,691.48/x
  3. Step 3: Cross multiply
    41,387x = 62,086.98 × 13,691.48
  4. Step 4: Simplify right side
    41,387x = 850,062,644.93
  5. Step 5: Solve for x
    x = 850,062,644.93/41,387
  6. Step 6: Final answer
    x = 20,539.36

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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.