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Finding the Third Proportional to 709 and 1,676

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Solution

The third proportional to 709 and 1,676 is: 3,961.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    709 : 1,676 = 1,676 : x
  2. Step 2: Convert to fraction form
    709/1,676 = 1,676/x
  3. Step 3: Cross multiply
    709x = 1,676 × 1,676
  4. Step 4: Simplify right side
    709x = 2,808,976
  5. Step 5: Solve for x
    x = 2,808,976/709
  6. Step 6: Final answer
    x = 3,961.88

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Why These Related Problems?

These problems maintain the same ratio (2.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.