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Finding the Third Proportional to 3,961 and 5,574

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Solution

The third proportional to 3,961 and 5,574 is: 7,843.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,961 : 5,574 = 5,574 : x
  2. Step 2: Convert to fraction form
    3,961/5,574 = 5,574/x
  3. Step 3: Cross multiply
    3,961x = 5,574 × 5,574
  4. Step 4: Simplify right side
    3,961x = 31,069,476
  5. Step 5: Solve for x
    x = 31,069,476/3,961
  6. Step 6: Final answer
    x = 7,843.85

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Why These Related Problems?

These problems maintain the same ratio (1.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.