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Finding the Fourth Proportional to 59,920.92, 89,801.19 and 28,339.38

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Solution

The fourth proportional to 59,920.92, 89,801.19 and 28,339.38 is: 42,471.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,920.92 : 89,801.19 = 28,339.38 : x
  2. Step 2: Convert to fraction form
    59,920.92/89,801.19 = 28,339.38/x
  3. Step 3: Cross multiply
    59,920.92x = 89,801.19 × 28,339.38
  4. Step 4: Simplify right side
    59,920.92x = 2,544,910,047.86
  5. Step 5: Solve for x
    x = 2,544,910,047.86/59,920.92
  6. Step 6: Final answer
    x = 42,471.14

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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.