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Finding the Fourth Proportional to 38,545.44, 57,825.96 and 21,913.44

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Solution

The fourth proportional to 38,545.44, 57,825.96 and 21,913.44 is: 32,874.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,545.44 : 57,825.96 = 21,913.44 : x
  2. Step 2: Convert to fraction form
    38,545.44/57,825.96 = 21,913.44/x
  3. Step 3: Cross multiply
    38,545.44x = 57,825.96 × 21,913.44
  4. Step 4: Simplify right side
    38,545.44x = 1,267,165,704.90
  5. Step 5: Solve for x
    x = 1,267,165,704.90/38,545.44
  6. Step 6: Final answer
    x = 32,874.59

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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.