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Finding the Fourth Proportional to 1,136.43, 1,704.92 and 1,027.96

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Solution

The fourth proportional to 1,136.43, 1,704.92 and 1,027.96 is: 1,542.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,136.43 : 1,704.92 = 1,027.96 : x
  2. Step 2: Convert to fraction form
    1,136.43/1,704.92 = 1,027.96/x
  3. Step 3: Cross multiply
    1,136.43x = 1,704.92 × 1,027.96
  4. Step 4: Simplify right side
    1,136.43x = 1,752,580.16
  5. Step 5: Solve for x
    x = 1,752,580.16/1,136.43
  6. Step 6: Final answer
    x = 1,542.18

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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.