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Finding the Fourth Proportional to 18,397.68, 27,601.18 and 5,250.10

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Solution

The fourth proportional to 18,397.68, 27,601.18 and 5,250.10 is: 7,876.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,397.68 : 27,601.18 = 5,250.10 : x
  2. Step 2: Convert to fraction form
    18,397.68/27,601.18 = 5,250.10/x
  3. Step 3: Cross multiply
    18,397.68x = 27,601.18 × 5,250.10
  4. Step 4: Simplify right side
    18,397.68x = 144,908,872.99
  5. Step 5: Solve for x
    x = 144,908,872.99/18,397.68
  6. Step 6: Final answer
    x = 7,876.48

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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.