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Finding the Third Proportional to 2,924 and 3,939

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Solution

The third proportional to 2,924 and 3,939 is: 5,306.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,924 : 3,939 = 3,939 : x
  2. Step 2: Convert to fraction form
    2,924/3,939 = 3,939/x
  3. Step 3: Cross multiply
    2,924x = 3,939 × 3,939
  4. Step 4: Simplify right side
    2,924x = 15,515,721
  5. Step 5: Solve for x
    x = 15,515,721/2,924
  6. Step 6: Final answer
    x = 5,306.33

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Why These Related Problems?

These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.