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Finding the Third Proportional to 8,809,791.75 and 18,969,171.75

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Solution

The third proportional to 8,809,791.75 and 18,969,171.75 is: 40,844,265.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,809,791.75 : 18,969,171.75 = 18,969,171.75 : x
  2. Step 2: Convert to fraction form
    8,809,791.75/18,969,171.75 = 18,969,171.75/x
  3. Step 3: Cross multiply
    8,809,791.75x = 18,969,171.75 × 18,969,171.75
  4. Step 4: Simplify right side
    8,809,791.75x = 359,829,476,880,998.06
  5. Step 5: Solve for x
    x = 359,829,476,880,998.06/8,809,791.75
  6. Step 6: Final answer
    x = 40,844,265.91

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Why These Related Problems?

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