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Finding the Fourth Proportional to 18,337.97, 27,516.33 and 8,731.71

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Solution

The fourth proportional to 18,337.97, 27,516.33 and 8,731.71 is: 13,102.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,337.97 : 27,516.33 = 8,731.71 : x
  2. Step 2: Convert to fraction form
    18,337.97/27,516.33 = 8,731.71/x
  3. Step 3: Cross multiply
    18,337.97x = 27,516.33 × 8,731.71
  4. Step 4: Simplify right side
    18,337.97x = 240,264,581.08
  5. Step 5: Solve for x
    x = 240,264,581.08/18,337.97
  6. Step 6: Final answer
    x = 13,102.03

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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.