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Finding the Third Proportional to 1,422 and 2,676

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Solution

The third proportional to 1,422 and 2,676 is: 5,035.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,422 : 2,676 = 2,676 : x
  2. Step 2: Convert to fraction form
    1,422/2,676 = 2,676/x
  3. Step 3: Cross multiply
    1,422x = 2,676 × 2,676
  4. Step 4: Simplify right side
    1,422x = 7,160,976
  5. Step 5: Solve for x
    x = 7,160,976/1,422
  6. Step 6: Final answer
    x = 5,035.85

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Why These Related Problems?

These problems maintain the same ratio (1.88) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.