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Finding the Third Proportional to 3,939,189 and 8,568,559

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Solution

The third proportional to 3,939,189 and 8,568,559 is: 18,638,405.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,939,189 : 8,568,559 = 8,568,559 : x
  2. Step 2: Convert to fraction form
    3,939,189/8,568,559 = 8,568,559/x
  3. Step 3: Cross multiply
    3,939,189x = 8,568,559 × 8,568,559
  4. Step 4: Simplify right side
    3,939,189x = 73,420,203,336,481
  5. Step 5: Solve for x
    x = 73,420,203,336,481/3,939,189
  6. Step 6: Final answer
    x = 18,638,405.86

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.