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Finding the Third Proportional to 18,555,516 and 38,383,866

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Solution

The third proportional to 18,555,516 and 38,383,866 is: 79,400,711.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,555,516 : 38,383,866 = 38,383,866 : x
  2. Step 2: Convert to fraction form
    18,555,516/38,383,866 = 38,383,866/x
  3. Step 3: Cross multiply
    18,555,516x = 38,383,866 × 38,383,866
  4. Step 4: Simplify right side
    18,555,516x = 1,473,321,169,105,956
  5. Step 5: Solve for x
    x = 1,473,321,169,105,956/18,555,516
  6. Step 6: Final answer
    x = 79,400,711.31

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Why These Related Problems?

These problems maintain the same ratio (2.07) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.