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Finding the Third Proportional to 874 and 1,726

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Solution

The third proportional to 874 and 1,726 is: 3,408.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    874 : 1,726 = 1,726 : x
  2. Step 2: Convert to fraction form
    874/1,726 = 1,726/x
  3. Step 3: Cross multiply
    874x = 1,726 × 1,726
  4. Step 4: Simplify right side
    874x = 2,979,076
  5. Step 5: Solve for x
    x = 2,979,076/874
  6. Step 6: Final answer
    x = 3,408.55

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Why These Related Problems?

These problems maintain the same ratio (1.97) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.