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Finding the Fourth Proportional to 7,371.53, 11,057.16 and 2,691.51

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Solution

The fourth proportional to 7,371.53, 11,057.16 and 2,691.51 is: 4,037.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,371.53 : 11,057.16 = 2,691.51 : x
  2. Step 2: Convert to fraction form
    7,371.53/11,057.16 = 2,691.51/x
  3. Step 3: Cross multiply
    7,371.53x = 11,057.16 × 2,691.51
  4. Step 4: Simplify right side
    7,371.53x = 29,760,456.71
  5. Step 5: Solve for x
    x = 29,760,456.71/7,371.53
  6. Step 6: Final answer
    x = 4,037.22

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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.