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Finding the Third Proportional to 11,842 and 15,363

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Solution

The third proportional to 11,842 and 15,363 is: 19,930.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,842 : 15,363 = 15,363 : x
  2. Step 2: Convert to fraction form
    11,842/15,363 = 15,363/x
  3. Step 3: Cross multiply
    11,842x = 15,363 × 15,363
  4. Step 4: Simplify right side
    11,842x = 236,021,769
  5. Step 5: Solve for x
    x = 236,021,769/11,842
  6. Step 6: Final answer
    x = 19,930.90

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Why These Related Problems?

These problems maintain the same ratio (1.30) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.