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Finding the Fourth Proportional to 3,963.12, 5,932.26 and 2,644.28

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Solution

The fourth proportional to 3,963.12, 5,932.26 and 2,644.28 is: 3,958.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,963.12 : 5,932.26 = 2,644.28 : x
  2. Step 2: Convert to fraction form
    3,963.12/5,932.26 = 2,644.28/x
  3. Step 3: Cross multiply
    3,963.12x = 5,932.26 × 2,644.28
  4. Step 4: Simplify right side
    3,963.12x = 15,686,556.47
  5. Step 5: Solve for x
    x = 15,686,556.47/3,963.12
  6. Step 6: Final answer
    x = 3,958.13

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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.