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Finding the Fourth Proportional to 3,791.64, 5,685.24 and 1,481.52

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Solution

The fourth proportional to 3,791.64, 5,685.24 and 1,481.52 is: 2,221.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,791.64 : 5,685.24 = 1,481.52 : x
  2. Step 2: Convert to fraction form
    3,791.64/5,685.24 = 1,481.52/x
  3. Step 3: Cross multiply
    3,791.64x = 5,685.24 × 1,481.52
  4. Step 4: Simplify right side
    3,791.64x = 8,422,796.76
  5. Step 5: Solve for x
    x = 8,422,796.76/3,791.64
  6. Step 6: Final answer
    x = 2,221.41

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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.