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Finding the Third Proportional to 3,990,986.44 and 8,754,540.75

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Solution

The third proportional to 3,990,986.44 and 8,754,540.75 is: 19,203,769.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,990,986.44 : 8,754,540.75 = 8,754,540.75 : x
  2. Step 2: Convert to fraction form
    3,990,986.44/8,754,540.75 = 8,754,540.75/x
  3. Step 3: Cross multiply
    3,990,986.44x = 8,754,540.75 × 8,754,540.75
  4. Step 4: Simplify right side
    3,990,986.44x = 76,641,983,743,410.56
  5. Step 5: Solve for x
    x = 76,641,983,743,410.56/3,990,986.44
  6. Step 6: Final answer
    x = 19,203,769.53

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.