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Finding the Third Proportional to 1,682 and 2,867

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Solution

The third proportional to 1,682 and 2,867 is: 4,886.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,682 : 2,867 = 2,867 : x
  2. Step 2: Convert to fraction form
    1,682/2,867 = 2,867/x
  3. Step 3: Cross multiply
    1,682x = 2,867 × 2,867
  4. Step 4: Simplify right side
    1,682x = 8,219,689
  5. Step 5: Solve for x
    x = 8,219,689/1,682
  6. Step 6: Final answer
    x = 4,886.85

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Why These Related Problems?

These problems maintain the same ratio (1.70) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.