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Finding the Third Proportional to 1,924 and 3,908

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Solution

The third proportional to 1,924 and 3,908 is: 7,937.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,924 : 3,908 = 3,908 : x
  2. Step 2: Convert to fraction form
    1,924/3,908 = 3,908/x
  3. Step 3: Cross multiply
    1,924x = 3,908 × 3,908
  4. Step 4: Simplify right side
    1,924x = 15,272,464
  5. Step 5: Solve for x
    x = 15,272,464/1,924
  6. Step 6: Final answer
    x = 7,937.87

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Why These Related Problems?

These problems maintain the same ratio (2.03) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.