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Finding the Fourth Proportional to 18,414.27, 25,411.56 and 11,244.15

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Solution

The fourth proportional to 18,414.27, 25,411.56 and 11,244.15 is: 15,516.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,414.27 : 25,411.56 = 11,244.15 : x
  2. Step 2: Convert to fraction form
    18,414.27/25,411.56 = 11,244.15/x
  3. Step 3: Cross multiply
    18,414.27x = 25,411.56 × 11,244.15
  4. Step 4: Simplify right side
    18,414.27x = 285,731,392.37
  5. Step 5: Solve for x
    x = 285,731,392.37/18,414.27
  6. Step 6: Final answer
    x = 15,516.85

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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.