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Finding the Fourth Proportional to 18,131.68, 25,029.84 and 11,060.92

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Solution

The fourth proportional to 18,131.68, 25,029.84 and 11,060.92 is: 15,269.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,131.68 : 25,029.84 = 11,060.92 : x
  2. Step 2: Convert to fraction form
    18,131.68/25,029.84 = 11,060.92/x
  3. Step 3: Cross multiply
    18,131.68x = 25,029.84 × 11,060.92
  4. Step 4: Simplify right side
    18,131.68x = 276,853,057.85
  5. Step 5: Solve for x
    x = 276,853,057.85/18,131.68
  6. Step 6: Final answer
    x = 15,269.02

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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.