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Finding the Third Proportional to 9,992,638 and 21,500,868

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Solution

The third proportional to 9,992,638 and 21,500,868 is: 46,262,791.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,992,638 : 21,500,868 = 21,500,868 : x
  2. Step 2: Convert to fraction form
    9,992,638/21,500,868 = 21,500,868/x
  3. Step 3: Cross multiply
    9,992,638x = 21,500,868 × 21,500,868
  4. Step 4: Simplify right side
    9,992,638x = 462,287,324,753,424
  5. Step 5: Solve for x
    x = 462,287,324,753,424/9,992,638
  6. Step 6: Final answer
    x = 46,262,791.14

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These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.