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Finding the Fourth Proportional to 3,951.39, 5,452.82 and 2,182.71

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Solution

The fourth proportional to 3,951.39, 5,452.82 and 2,182.71 is: 3,012.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,951.39 : 5,452.82 = 2,182.71 : x
  2. Step 2: Convert to fraction form
    3,951.39/5,452.82 = 2,182.71/x
  3. Step 3: Cross multiply
    3,951.39x = 5,452.82 × 2,182.71
  4. Step 4: Simplify right side
    3,951.39x = 11,901,913.83
  5. Step 5: Solve for x
    x = 11,901,913.83/3,951.39
  6. Step 6: Final answer
    x = 3,012.08

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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.