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Finding the Fourth Proportional to 18,757.92, 28,082.21 and 16,251.38

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Solution

The fourth proportional to 18,757.92, 28,082.21 and 16,251.38 is: 24,329.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,757.92 : 28,082.21 = 16,251.38 : x
  2. Step 2: Convert to fraction form
    18,757.92/28,082.21 = 16,251.38/x
  3. Step 3: Cross multiply
    18,757.92x = 28,082.21 × 16,251.38
  4. Step 4: Simplify right side
    18,757.92x = 456,374,444.28
  5. Step 5: Solve for x
    x = 456,374,444.28/18,757.92
  6. Step 6: Final answer
    x = 24,329.69

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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.