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Finding the Third Proportional to 7,941 and 17,438

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Solution

The third proportional to 7,941 and 17,438 is: 38,292.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,941 : 17,438 = 17,438 : x
  2. Step 2: Convert to fraction form
    7,941/17,438 = 17,438/x
  3. Step 3: Cross multiply
    7,941x = 17,438 × 17,438
  4. Step 4: Simplify right side
    7,941x = 304,083,844
  5. Step 5: Solve for x
    x = 304,083,844/7,941
  6. Step 6: Final answer
    x = 38,292.89

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.