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Finding the Third Proportional to 3,708 and 7,974

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Solution

The third proportional to 3,708 and 7,974 is: 17,147.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,708 : 7,974 = 7,974 : x
  2. Step 2: Convert to fraction form
    3,708/7,974 = 7,974/x
  3. Step 3: Cross multiply
    3,708x = 7,974 × 7,974
  4. Step 4: Simplify right side
    3,708x = 63,584,676
  5. Step 5: Solve for x
    x = 63,584,676/3,708
  6. Step 6: Final answer
    x = 17,147.97

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.