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Finding the Fourth Proportional to 3,963.73, 5,473.65 and 2,549.87

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Solution

The fourth proportional to 3,963.73, 5,473.65 and 2,549.87 is: 3,521.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,963.73 : 5,473.65 = 2,549.87 : x
  2. Step 2: Convert to fraction form
    3,963.73/5,473.65 = 2,549.87/x
  3. Step 3: Cross multiply
    3,963.73x = 5,473.65 × 2,549.87
  4. Step 4: Simplify right side
    3,963.73x = 13,957,109.61
  5. Step 5: Solve for x
    x = 13,957,109.61/3,963.73
  6. Step 6: Final answer
    x = 3,521.21

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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.