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Finding the Fourth Proportional to 57,951.53, 86,920.39 and 15,261.29

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Solution

The fourth proportional to 57,951.53, 86,920.39 and 15,261.29 is: 22,890.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,951.53 : 86,920.39 = 15,261.29 : x
  2. Step 2: Convert to fraction form
    57,951.53/86,920.39 = 15,261.29/x
  3. Step 3: Cross multiply
    57,951.53x = 86,920.39 × 15,261.29
  4. Step 4: Simplify right side
    57,951.53x = 1,326,517,278.70
  5. Step 5: Solve for x
    x = 1,326,517,278.70/57,951.53
  6. Step 6: Final answer
    x = 22,890.12

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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.