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Finding the Fourth Proportional to 59,215.60, 81,691.68 and 37,693.90

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Solution

The fourth proportional to 59,215.60, 81,691.68 and 37,693.90 is: 52,001.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,215.60 : 81,691.68 = 37,693.90 : x
  2. Step 2: Convert to fraction form
    59,215.60/81,691.68 = 37,693.90/x
  3. Step 3: Cross multiply
    59,215.60x = 81,691.68 × 37,693.90
  4. Step 4: Simplify right side
    59,215.60x = 3,079,278,016.75
  5. Step 5: Solve for x
    x = 3,079,278,016.75/59,215.60
  6. Step 6: Final answer
    x = 52,001.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.