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Finding the Third Proportional to 2,147 and 3,226

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Solution

The third proportional to 2,147 and 3,226 is: 4,847.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,147 : 3,226 = 3,226 : x
  2. Step 2: Convert to fraction form
    2,147/3,226 = 3,226/x
  3. Step 3: Cross multiply
    2,147x = 3,226 × 3,226
  4. Step 4: Simplify right side
    2,147x = 10,407,076
  5. Step 5: Solve for x
    x = 10,407,076/2,147
  6. Step 6: Final answer
    x = 4,847.26

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.