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Finding the Third Proportional to 11,884 and 15,410

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Solution

The third proportional to 11,884 and 15,410 is: 19,982.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,884 : 15,410 = 15,410 : x
  2. Step 2: Convert to fraction form
    11,884/15,410 = 15,410/x
  3. Step 3: Cross multiply
    11,884x = 15,410 × 15,410
  4. Step 4: Simplify right side
    11,884x = 237,468,100
  5. Step 5: Solve for x
    x = 237,468,100/11,884
  6. Step 6: Final answer
    x = 19,982.17

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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.