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Finding the Third Proportional to 1,344 and 1,913

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Solution

The third proportional to 1,344 and 1,913 is: 2,722.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,344 : 1,913 = 1,913 : x
  2. Step 2: Convert to fraction form
    1,344/1,913 = 1,913/x
  3. Step 3: Cross multiply
    1,344x = 1,913 × 1,913
  4. Step 4: Simplify right side
    1,344x = 3,659,569
  5. Step 5: Solve for x
    x = 3,659,569/1,344
  6. Step 6: Final answer
    x = 2,722.89

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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.