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Finding the Third Proportional to 4,397 and 6,839

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Solution

The third proportional to 4,397 and 6,839 is: 10,637.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,397 : 6,839 = 6,839 : x
  2. Step 2: Convert to fraction form
    4,397/6,839 = 6,839/x
  3. Step 3: Cross multiply
    4,397x = 6,839 × 6,839
  4. Step 4: Simplify right side
    4,397x = 46,771,921
  5. Step 5: Solve for x
    x = 46,771,921/4,397
  6. Step 6: Final answer
    x = 10,637.23

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.