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Finding the Third Proportional to 1,398 and 2,241

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Solution

The third proportional to 1,398 and 2,241 is: 3,592.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,398 : 2,241 = 2,241 : x
  2. Step 2: Convert to fraction form
    1,398/2,241 = 2,241/x
  3. Step 3: Cross multiply
    1,398x = 2,241 × 2,241
  4. Step 4: Simplify right side
    1,398x = 5,022,081
  5. Step 5: Solve for x
    x = 5,022,081/1,398
  6. Step 6: Final answer
    x = 3,592.33

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Why These Related Problems?

These problems maintain the same ratio (1.60) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.