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Finding the Fourth Proportional to 57,481.03, 86,221.14 and 15,928.03

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Solution

The fourth proportional to 57,481.03, 86,221.14 and 15,928.03 is: 23,891.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,481.03 : 86,221.14 = 15,928.03 : x
  2. Step 2: Convert to fraction form
    57,481.03/86,221.14 = 15,928.03/x
  3. Step 3: Cross multiply
    57,481.03x = 86,221.14 × 15,928.03
  4. Step 4: Simplify right side
    57,481.03x = 1,373,332,904.55
  5. Step 5: Solve for x
    x = 1,373,332,904.55/57,481.03
  6. Step 6: Final answer
    x = 23,891.93

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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.