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Finding the Third Proportional to 11,470 and 15,294

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Solution

The third proportional to 11,470 and 15,294 is: 20,392.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,470 : 15,294 = 15,294 : x
  2. Step 2: Convert to fraction form
    11,470/15,294 = 15,294/x
  3. Step 3: Cross multiply
    11,470x = 15,294 × 15,294
  4. Step 4: Simplify right side
    11,470x = 233,906,436
  5. Step 5: Solve for x
    x = 233,906,436/11,470
  6. Step 6: Final answer
    x = 20,392.89

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Why These Related Problems?

These problems maintain the same ratio (1.33) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.