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Finding the Fourth Proportional to 1,791.92, 2,472.53 and 1,162.28

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Solution

The fourth proportional to 1,791.92, 2,472.53 and 1,162.28 is: 1,603.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,791.92 : 2,472.53 = 1,162.28 : x
  2. Step 2: Convert to fraction form
    1,791.92/2,472.53 = 1,162.28/x
  3. Step 3: Cross multiply
    1,791.92x = 2,472.53 × 1,162.28
  4. Step 4: Simplify right side
    1,791.92x = 2,873,772.54
  5. Step 5: Solve for x
    x = 2,873,772.54/1,791.92
  6. Step 6: Final answer
    x = 1,603.74

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.