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Finding the Third Proportional to 18,747,044 and 38,986,756

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Solution

The third proportional to 18,747,044 and 38,986,756 is: 81,077,696.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,747,044 : 38,986,756 = 38,986,756 : x
  2. Step 2: Convert to fraction form
    18,747,044/38,986,756 = 38,986,756/x
  3. Step 3: Cross multiply
    18,747,044x = 38,986,756 × 38,986,756
  4. Step 4: Simplify right side
    18,747,044x = 1,519,967,143,403,536
  5. Step 5: Solve for x
    x = 1,519,967,143,403,536/18,747,044
  6. Step 6: Final answer
    x = 81,077,696.48

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Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.