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Finding the Fourth Proportional to 56,251.80, 84,387.42 and 22,989.96

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Solution

The fourth proportional to 56,251.80, 84,387.42 and 22,989.96 is: 34,488.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,251.80 : 84,387.42 = 22,989.96 : x
  2. Step 2: Convert to fraction form
    56,251.80/84,387.42 = 22,989.96/x
  3. Step 3: Cross multiply
    56,251.80x = 84,387.42 × 22,989.96
  4. Step 4: Simplify right side
    56,251.80x = 1,940,063,410.30
  5. Step 5: Solve for x
    x = 1,940,063,410.30/56,251.80
  6. Step 6: Final answer
    x = 34,488.91

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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.