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Finding the Third Proportional to 1,721 and 3,295

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Solution

The third proportional to 1,721 and 3,295 is: 6,308.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,721 : 3,295 = 3,295 : x
  2. Step 2: Convert to fraction form
    1,721/3,295 = 3,295/x
  3. Step 3: Cross multiply
    1,721x = 3,295 × 3,295
  4. Step 4: Simplify right side
    1,721x = 10,857,025
  5. Step 5: Solve for x
    x = 10,857,025/1,721
  6. Step 6: Final answer
    x = 6,308.56

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Why These Related Problems?

These problems maintain the same ratio (1.91) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.