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Finding the Fourth Proportional to 59,489.56, 89,242.57 and 20,057.95

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Solution

The fourth proportional to 59,489.56, 89,242.57 and 20,057.95 is: 30,089.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,489.56 : 89,242.57 = 20,057.95 : x
  2. Step 2: Convert to fraction form
    59,489.56/89,242.57 = 20,057.95/x
  3. Step 3: Cross multiply
    59,489.56x = 89,242.57 × 20,057.95
  4. Step 4: Simplify right side
    59,489.56x = 1,790,023,006.93
  5. Step 5: Solve for x
    x = 1,790,023,006.93/59,489.56
  6. Step 6: Final answer
    x = 30,089.70

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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.