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Finding the Third Proportional to 18,192 and 27,816

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Solution

The third proportional to 18,192 and 27,816 is: 42,531.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,192 : 27,816 = 27,816 : x
  2. Step 2: Convert to fraction form
    18,192/27,816 = 27,816/x
  3. Step 3: Cross multiply
    18,192x = 27,816 × 27,816
  4. Step 4: Simplify right side
    18,192x = 773,729,856
  5. Step 5: Solve for x
    x = 773,729,856/18,192
  6. Step 6: Final answer
    x = 42,531.32

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.