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Finding the Fourth Proportional to 18,391.91, 27,516.11 and 16,152.97

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Solution

The fourth proportional to 18,391.91, 27,516.11 and 16,152.97 is: 24,166.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,391.91 : 27,516.11 = 16,152.97 : x
  2. Step 2: Convert to fraction form
    18,391.91/27,516.11 = 16,152.97/x
  3. Step 3: Cross multiply
    18,391.91x = 27,516.11 × 16,152.97
  4. Step 4: Simplify right side
    18,391.91x = 444,466,801.38
  5. Step 5: Solve for x
    x = 444,466,801.38/18,391.91
  6. Step 6: Final answer
    x = 24,166.43

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1.5x scale

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.