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Finding the Third Proportional to 11,228 and 17,622

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Solution

The third proportional to 11,228 and 17,622 is: 27,657.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,228 : 17,622 = 17,622 : x
  2. Step 2: Convert to fraction form
    11,228/17,622 = 17,622/x
  3. Step 3: Cross multiply
    11,228x = 17,622 × 17,622
  4. Step 4: Simplify right side
    11,228x = 310,534,884
  5. Step 5: Solve for x
    x = 310,534,884/11,228
  6. Step 6: Final answer
    x = 27,657.19

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.