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Finding the Fourth Proportional to 57,498.57, 86,251.31 and 18,055.68

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Solution

The fourth proportional to 57,498.57, 86,251.31 and 18,055.68 is: 27,084.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,498.57 : 86,251.31 = 18,055.68 : x
  2. Step 2: Convert to fraction form
    57,498.57/86,251.31 = 18,055.68/x
  3. Step 3: Cross multiply
    57,498.57x = 86,251.31 × 18,055.68
  4. Step 4: Simplify right side
    57,498.57x = 1,557,325,962.66
  5. Step 5: Solve for x
    x = 1,557,325,962.66/57,498.57
  6. Step 6: Final answer
    x = 27,084.61

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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.