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Finding the Fourth Proportional to 3,974.97, 5,962.49 and 1,201.65

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Solution

The fourth proportional to 3,974.97, 5,962.49 and 1,201.65 is: 1,802.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,974.97 : 5,962.49 = 1,201.65 : x
  2. Step 2: Convert to fraction form
    3,974.97/5,962.49 = 1,201.65/x
  3. Step 3: Cross multiply
    3,974.97x = 5,962.49 × 1,201.65
  4. Step 4: Simplify right side
    3,974.97x = 7,164,820.10
  5. Step 5: Solve for x
    x = 7,164,820.10/3,974.97
  6. Step 6: Final answer
    x = 1,802.48

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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.