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Finding the Third Proportional to 2,959 and 3,949

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Solution

The third proportional to 2,959 and 3,949 is: 5,270.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,959 : 3,949 = 3,949 : x
  2. Step 2: Convert to fraction form
    2,959/3,949 = 3,949/x
  3. Step 3: Cross multiply
    2,959x = 3,949 × 3,949
  4. Step 4: Simplify right side
    2,959x = 15,594,601
  5. Step 5: Solve for x
    x = 15,594,601/2,959
  6. Step 6: Final answer
    x = 5,270.23

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Why These Related Problems?

These problems maintain the same ratio (1.33) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.