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Finding the Third Proportional to 3,946 and 8,256

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Solution

The third proportional to 3,946 and 8,256 is: 17,273.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,946 : 8,256 = 8,256 : x
  2. Step 2: Convert to fraction form
    3,946/8,256 = 8,256/x
  3. Step 3: Cross multiply
    3,946x = 8,256 × 8,256
  4. Step 4: Simplify right side
    3,946x = 68,161,536
  5. Step 5: Solve for x
    x = 68,161,536/3,946
  6. Step 6: Final answer
    x = 17,273.58

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Why These Related Problems?

These problems maintain the same ratio (2.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.