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Finding the Fourth Proportional to 57,481.29, 86,194.17 and 20,040.48

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Solution

The fourth proportional to 57,481.29, 86,194.17 and 20,040.48 is: 30,051.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,481.29 : 86,194.17 = 20,040.48 : x
  2. Step 2: Convert to fraction form
    57,481.29/86,194.17 = 20,040.48/x
  3. Step 3: Cross multiply
    57,481.29x = 86,194.17 × 20,040.48
  4. Step 4: Simplify right side
    57,481.29x = 1,727,372,540.00
  5. Step 5: Solve for x
    x = 1,727,372,540.00/57,481.29
  6. Step 6: Final answer
    x = 30,051.04

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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.