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Finding the Third Proportional to 7,392 and 11,449

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Solution

The third proportional to 7,392 and 11,449 is: 17,732.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,392 : 11,449 = 11,449 : x
  2. Step 2: Convert to fraction form
    7,392/11,449 = 11,449/x
  3. Step 3: Cross multiply
    7,392x = 11,449 × 11,449
  4. Step 4: Simplify right side
    7,392x = 131,079,601
  5. Step 5: Solve for x
    x = 131,079,601/7,392
  6. Step 6: Final answer
    x = 17,732.63

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.