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Finding the Fourth Proportional to 18,230.73, 27,358.41 and 7,136.04

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Solution

The fourth proportional to 18,230.73, 27,358.41 and 7,136.04 is: 10,708.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,230.73 : 27,358.41 = 7,136.04 : x
  2. Step 2: Convert to fraction form
    18,230.73/27,358.41 = 7,136.04/x
  3. Step 3: Cross multiply
    18,230.73x = 27,358.41 × 7,136.04
  4. Step 4: Simplify right side
    18,230.73x = 195,230,708.10
  5. Step 5: Solve for x
    x = 195,230,708.10/18,230.73
  6. Step 6: Final answer
    x = 10,708.88

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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.