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Finding the Third Proportional to 2,926 and 3,902

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Solution

The third proportional to 2,926 and 3,902 is: 5,203.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,926 : 3,902 = 3,902 : x
  2. Step 2: Convert to fraction form
    2,926/3,902 = 3,902/x
  3. Step 3: Cross multiply
    2,926x = 3,902 × 3,902
  4. Step 4: Simplify right side
    2,926x = 15,225,604
  5. Step 5: Solve for x
    x = 15,225,604/2,926
  6. Step 6: Final answer
    x = 5,203.56

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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.