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Finding the Third Proportional to 667 and 1,708

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Solution

The third proportional to 667 and 1,708 is: 4,373.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    667 : 1,708 = 1,708 : x
  2. Step 2: Convert to fraction form
    667/1,708 = 1,708/x
  3. Step 3: Cross multiply
    667x = 1,708 × 1,708
  4. Step 4: Simplify right side
    667x = 2,917,264
  5. Step 5: Solve for x
    x = 2,917,264/667
  6. Step 6: Final answer
    x = 4,373.71

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Why These Related Problems?

These problems maintain the same ratio (2.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.