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Finding the Third Proportional to 834 and 1,997

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Solution

The third proportional to 834 and 1,997 is: 4,781.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    834 : 1,997 = 1,997 : x
  2. Step 2: Convert to fraction form
    834/1,997 = 1,997/x
  3. Step 3: Cross multiply
    834x = 1,997 × 1,997
  4. Step 4: Simplify right side
    834x = 3,988,009
  5. Step 5: Solve for x
    x = 3,988,009/834
  6. Step 6: Final answer
    x = 4,781.79

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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.