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Finding the Third Proportional to 3,406 and 7,226

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Solution

The third proportional to 3,406 and 7,226 is: 15,330.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,406 : 7,226 = 7,226 : x
  2. Step 2: Convert to fraction form
    3,406/7,226 = 7,226/x
  3. Step 3: Cross multiply
    3,406x = 7,226 × 7,226
  4. Step 4: Simplify right side
    3,406x = 52,215,076
  5. Step 5: Solve for x
    x = 52,215,076/3,406
  6. Step 6: Final answer
    x = 15,330.32

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.