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Finding the Third Proportional to 1,749 and 3,963

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Solution

The third proportional to 1,749 and 3,963 is: 8,979.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,749 : 3,963 = 3,963 : x
  2. Step 2: Convert to fraction form
    1,749/3,963 = 3,963/x
  3. Step 3: Cross multiply
    1,749x = 3,963 × 3,963
  4. Step 4: Simplify right side
    1,749x = 15,705,369
  5. Step 5: Solve for x
    x = 15,705,369/1,749
  6. Step 6: Final answer
    x = 8,979.63

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Why These Related Problems?

These problems maintain the same ratio (2.27) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.