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Finding the Third Proportional to 867 and 1,227

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Solution

The third proportional to 867 and 1,227 is: 1,736.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    867 : 1,227 = 1,227 : x
  2. Step 2: Convert to fraction form
    867/1,227 = 1,227/x
  3. Step 3: Cross multiply
    867x = 1,227 × 1,227
  4. Step 4: Simplify right side
    867x = 1,505,529
  5. Step 5: Solve for x
    x = 1,505,529/867
  6. Step 6: Final answer
    x = 1,736.48

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Why These Related Problems?

These problems maintain the same ratio (1.42) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.