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Finding the Third Proportional to 10,471 and 15,393

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Solution

The third proportional to 10,471 and 15,393 is: 22,628.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,471 : 15,393 = 15,393 : x
  2. Step 2: Convert to fraction form
    10,471/15,393 = 15,393/x
  3. Step 3: Cross multiply
    10,471x = 15,393 × 15,393
  4. Step 4: Simplify right side
    10,471x = 236,944,449
  5. Step 5: Solve for x
    x = 236,944,449/10,471
  6. Step 6: Final answer
    x = 22,628.64

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.