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Finding the Fourth Proportional to 11,871.27, 16,375.50 and 7,679.52

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Solution

The fourth proportional to 11,871.27, 16,375.50 and 7,679.52 is: 10,593.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,871.27 : 16,375.50 = 7,679.52 : x
  2. Step 2: Convert to fraction form
    11,871.27/16,375.50 = 7,679.52/x
  3. Step 3: Cross multiply
    11,871.27x = 16,375.50 × 7,679.52
  4. Step 4: Simplify right side
    11,871.27x = 125,755,979.76
  5. Step 5: Solve for x
    x = 125,755,979.76/11,871.27
  6. Step 6: Final answer
    x = 10,593.30

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.