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Finding the Fourth Proportional to 57,734.60, 86,604.60 and 18,294.80

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Solution

The fourth proportional to 57,734.60, 86,604.60 and 18,294.80 is: 27,443.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,734.60 : 86,604.60 = 18,294.80 : x
  2. Step 2: Convert to fraction form
    57,734.60/86,604.60 = 18,294.80/x
  3. Step 3: Cross multiply
    57,734.60x = 86,604.60 × 18,294.80
  4. Step 4: Simplify right side
    57,734.60x = 1,584,413,836.08
  5. Step 5: Solve for x
    x = 1,584,413,836.08/57,734.60
  6. Step 6: Final answer
    x = 27,443.06

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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.