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Finding the Third Proportional to 3,976 and 6,531

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Solution

The third proportional to 3,976 and 6,531 is: 10,727.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,976 : 6,531 = 6,531 : x
  2. Step 2: Convert to fraction form
    3,976/6,531 = 6,531/x
  3. Step 3: Cross multiply
    3,976x = 6,531 × 6,531
  4. Step 4: Simplify right side
    3,976x = 42,653,961
  5. Step 5: Solve for x
    x = 42,653,961/3,976
  6. Step 6: Final answer
    x = 10,727.86

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Why These Related Problems?

These problems maintain the same ratio (1.64) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.