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Finding the Fourth Proportional to 1,668.27, 2,502.86 and 731.04

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Solution

The fourth proportional to 1,668.27, 2,502.86 and 731.04 is: 1,096.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,668.27 : 2,502.86 = 731.04 : x
  2. Step 2: Convert to fraction form
    1,668.27/2,502.86 = 731.04/x
  3. Step 3: Cross multiply
    1,668.27x = 2,502.86 × 731.04
  4. Step 4: Simplify right side
    1,668.27x = 1,829,691.81
  5. Step 5: Solve for x
    x = 1,829,691.81/1,668.27
  6. Step 6: Final answer
    x = 1,096.76

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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.