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Finding the Fourth Proportional to 57,951.68, 86,920.26 and 18,505.52

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Solution

The fourth proportional to 57,951.68, 86,920.26 and 18,505.52 is: 27,755.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,951.68 : 86,920.26 = 18,505.52 : x
  2. Step 2: Convert to fraction form
    57,951.68/86,920.26 = 18,505.52/x
  3. Step 3: Cross multiply
    57,951.68x = 86,920.26 × 18,505.52
  4. Step 4: Simplify right side
    57,951.68x = 1,608,504,609.84
  5. Step 5: Solve for x
    x = 1,608,504,609.84/57,951.68
  6. Step 6: Final answer
    x = 27,755.96

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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.