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Finding the Fourth Proportional to 18,019.98, 24,872.00 and 10,951.11

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Solution

The fourth proportional to 18,019.98, 24,872.00 and 10,951.11 is: 15,115.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,019.98 : 24,872.00 = 10,951.11 : x
  2. Step 2: Convert to fraction form
    18,019.98/24,872.00 = 10,951.11/x
  3. Step 3: Cross multiply
    18,019.98x = 24,872.00 × 10,951.11
  4. Step 4: Simplify right side
    18,019.98x = 272,375,953.16
  5. Step 5: Solve for x
    x = 272,375,953.16/18,019.98
  6. Step 6: Final answer
    x = 15,115.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.