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Finding the Third Proportional to 719 and 1,718

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Solution

The third proportional to 719 and 1,718 is: 4,105.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    719 : 1,718 = 1,718 : x
  2. Step 2: Convert to fraction form
    719/1,718 = 1,718/x
  3. Step 3: Cross multiply
    719x = 1,718 × 1,718
  4. Step 4: Simplify right side
    719x = 2,951,524
  5. Step 5: Solve for x
    x = 2,951,524/719
  6. Step 6: Final answer
    x = 4,105.04

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Why These Related Problems?

These problems maintain the same ratio (2.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.