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Finding the Third Proportional to 2,210 and 3,926

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Solution

The third proportional to 2,210 and 3,926 is: 6,974.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,210 : 3,926 = 3,926 : x
  2. Step 2: Convert to fraction form
    2,210/3,926 = 3,926/x
  3. Step 3: Cross multiply
    2,210x = 3,926 × 3,926
  4. Step 4: Simplify right side
    2,210x = 15,413,476
  5. Step 5: Solve for x
    x = 15,413,476/2,210
  6. Step 6: Final answer
    x = 6,974.42

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Why These Related Problems?

These problems maintain the same ratio (1.78) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.