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Finding the Third Proportional to 2,657 and 3,967

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Solution

The third proportional to 2,657 and 3,967 is: 5,922.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,657 : 3,967 = 3,967 : x
  2. Step 2: Convert to fraction form
    2,657/3,967 = 3,967/x
  3. Step 3: Cross multiply
    2,657x = 3,967 × 3,967
  4. Step 4: Simplify right side
    2,657x = 15,737,089
  5. Step 5: Solve for x
    x = 15,737,089/2,657
  6. Step 6: Final answer
    x = 5,922.88

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.