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Finding the Fourth Proportional to 18,732.72, 25,851.24 and 10,349.28

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Solution

The fourth proportional to 18,732.72, 25,851.24 and 10,349.28 is: 14,282.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,732.72 : 25,851.24 = 10,349.28 : x
  2. Step 2: Convert to fraction form
    18,732.72/25,851.24 = 10,349.28/x
  3. Step 3: Cross multiply
    18,732.72x = 25,851.24 × 10,349.28
  4. Step 4: Simplify right side
    18,732.72x = 267,541,721.11
  5. Step 5: Solve for x
    x = 267,541,721.11/18,732.72
  6. Step 6: Final answer
    x = 14,282.05

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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.