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Finding the Fourth Proportional to 3,974.62, 5,963.02 and 1,377.22

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Solution

The fourth proportional to 3,974.62, 5,963.02 and 1,377.22 is: 2,066.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,974.62 : 5,963.02 = 1,377.22 : x
  2. Step 2: Convert to fraction form
    3,974.62/5,963.02 = 1,377.22/x
  3. Step 3: Cross multiply
    3,974.62x = 5,963.02 × 1,377.22
  4. Step 4: Simplify right side
    3,974.62x = 8,212,390.40
  5. Step 5: Solve for x
    x = 8,212,390.40/3,974.62
  6. Step 6: Final answer
    x = 2,066.21

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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.