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Finding the Fourth Proportional to 3,963.97, 5,945.51 and 1,042.51

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Solution

The fourth proportional to 3,963.97, 5,945.51 and 1,042.51 is: 1,563.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,963.97 : 5,945.51 = 1,042.51 : x
  2. Step 2: Convert to fraction form
    3,963.97/5,945.51 = 1,042.51/x
  3. Step 3: Cross multiply
    3,963.97x = 5,945.51 × 1,042.51
  4. Step 4: Simplify right side
    3,963.97x = 6,198,218.69
  5. Step 5: Solve for x
    x = 6,198,218.69/3,963.97
  6. Step 6: Final answer
    x = 1,563.64

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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.