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Finding the Fourth Proportional to 18,372.62, 27,565.07 and 7,282.47

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Solution

The fourth proportional to 18,372.62, 27,565.07 and 7,282.47 is: 10,926.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,372.62 : 27,565.07 = 7,282.47 : x
  2. Step 2: Convert to fraction form
    18,372.62/27,565.07 = 7,282.47/x
  3. Step 3: Cross multiply
    18,372.62x = 27,565.07 × 7,282.47
  4. Step 4: Simplify right side
    18,372.62x = 200,741,916.90
  5. Step 5: Solve for x
    x = 200,741,916.90/18,372.62
  6. Step 6: Final answer
    x = 10,926.15

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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.