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Finding the Fourth Proportional to 59,720.75, 89,562.11 and 19,732.31

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Solution

The fourth proportional to 59,720.75, 89,562.11 and 19,732.31 is: 29,592.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,720.75 : 89,562.11 = 19,732.31 : x
  2. Step 2: Convert to fraction form
    59,720.75/89,562.11 = 19,732.31/x
  3. Step 3: Cross multiply
    59,720.75x = 89,562.11 × 19,732.31
  4. Step 4: Simplify right side
    59,720.75x = 1,767,266,772.30
  5. Step 5: Solve for x
    x = 1,767,266,772.30/59,720.75
  6. Step 6: Final answer
    x = 29,592.18

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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.