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Finding the Third Proportional to 3,892 and 8,926

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Solution

The third proportional to 3,892 and 8,926 is: 20,471.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,892 : 8,926 = 8,926 : x
  2. Step 2: Convert to fraction form
    3,892/8,926 = 8,926/x
  3. Step 3: Cross multiply
    3,892x = 8,926 × 8,926
  4. Step 4: Simplify right side
    3,892x = 79,673,476
  5. Step 5: Solve for x
    x = 79,673,476/3,892
  6. Step 6: Final answer
    x = 20,471.09

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Why These Related Problems?

These problems maintain the same ratio (2.29) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.