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Finding the Third Proportional to 2,644 and 3,402

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Solution

The third proportional to 2,644 and 3,402 is: 4,377.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,644 : 3,402 = 3,402 : x
  2. Step 2: Convert to fraction form
    2,644/3,402 = 3,402/x
  3. Step 3: Cross multiply
    2,644x = 3,402 × 3,402
  4. Step 4: Simplify right side
    2,644x = 11,573,604
  5. Step 5: Solve for x
    x = 11,573,604/2,644
  6. Step 6: Final answer
    x = 4,377.31

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Why These Related Problems?

These problems maintain the same ratio (1.29) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.