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Finding the Fourth Proportional to 1,162.44, 1,747.31 and 732.33

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Solution

The fourth proportional to 1,162.44, 1,747.31 and 732.33 is: 1,100.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,162.44 : 1,747.31 = 732.33 : x
  2. Step 2: Convert to fraction form
    1,162.44/1,747.31 = 732.33/x
  3. Step 3: Cross multiply
    1,162.44x = 1,747.31 × 732.33
  4. Step 4: Simplify right side
    1,162.44x = 1,279,603.87
  5. Step 5: Solve for x
    x = 1,279,603.87/1,162.44
  6. Step 6: Final answer
    x = 1,100.79

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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.