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Finding the Fourth Proportional to 2,691.97, 4,037.83 and 744.15

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Solution

The fourth proportional to 2,691.97, 4,037.83 and 744.15 is: 1,116.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,691.97 : 4,037.83 = 744.15 : x
  2. Step 2: Convert to fraction form
    2,691.97/4,037.83 = 744.15/x
  3. Step 3: Cross multiply
    2,691.97x = 4,037.83 × 744.15
  4. Step 4: Simplify right side
    2,691.97x = 3,004,751.19
  5. Step 5: Solve for x
    x = 3,004,751.19/2,691.97
  6. Step 6: Final answer
    x = 1,116.19

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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.