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Finding the Third Proportional to 3,946 and 6,311

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Solution

The third proportional to 3,946 and 6,311 is: 10,093.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,946 : 6,311 = 6,311 : x
  2. Step 2: Convert to fraction form
    3,946/6,311 = 6,311/x
  3. Step 3: Cross multiply
    3,946x = 6,311 × 6,311
  4. Step 4: Simplify right side
    3,946x = 39,828,721
  5. Step 5: Solve for x
    x = 39,828,721/3,946
  6. Step 6: Final answer
    x = 10,093.44

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Why These Related Problems?

These problems maintain the same ratio (1.60) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.