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Finding the Fourth Proportional to 2,581.26, 3,871.82 and 732.33

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Solution

The fourth proportional to 2,581.26, 3,871.82 and 732.33 is: 1,098.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,581.26 : 3,871.82 = 732.33 : x
  2. Step 2: Convert to fraction form
    2,581.26/3,871.82 = 732.33/x
  3. Step 3: Cross multiply
    2,581.26x = 3,871.82 × 732.33
  4. Step 4: Simplify right side
    2,581.26x = 2,835,446.28
  5. Step 5: Solve for x
    x = 2,835,446.28/2,581.26
  6. Step 6: Final answer
    x = 1,098.47

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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.