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Finding the Fourth Proportional to 1,168.24, 1,752.97 and 757.27

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Solution

The fourth proportional to 1,168.24, 1,752.97 and 757.27 is: 1,136.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,168.24 : 1,752.97 = 757.27 : x
  2. Step 2: Convert to fraction form
    1,168.24/1,752.97 = 757.27/x
  3. Step 3: Cross multiply
    1,168.24x = 1,752.97 × 757.27
  4. Step 4: Simplify right side
    1,168.24x = 1,327,471.59
  5. Step 5: Solve for x
    x = 1,327,471.59/1,168.24
  6. Step 6: Final answer
    x = 1,136.30

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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.