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Finding the Third Proportional to 4,080,667 and 8,936,990

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Solution

The third proportional to 4,080,667 and 8,936,990 is: 19,572,729.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,080,667 : 8,936,990 = 8,936,990 : x
  2. Step 2: Convert to fraction form
    4,080,667/8,936,990 = 8,936,990/x
  3. Step 3: Cross multiply
    4,080,667x = 8,936,990 × 8,936,990
  4. Step 4: Simplify right side
    4,080,667x = 79,869,790,260,100
  5. Step 5: Solve for x
    x = 79,869,790,260,100/4,080,667
  6. Step 6: Final answer
    x = 19,572,729.23

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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.