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Finding the Third Proportional to 18,776 and 22,016

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Solution

The third proportional to 18,776 and 22,016 is: 25,815.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,776 : 22,016 = 22,016 : x
  2. Step 2: Convert to fraction form
    18,776/22,016 = 22,016/x
  3. Step 3: Cross multiply
    18,776x = 22,016 × 22,016
  4. Step 4: Simplify right side
    18,776x = 484,704,256
  5. Step 5: Solve for x
    x = 484,704,256/18,776
  6. Step 6: Final answer
    x = 25,815.10

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Why These Related Problems?

These problems maintain the same ratio (1.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.