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Finding the Third Proportional to 3,939,155 and 8,568,491

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Solution

The third proportional to 3,939,155 and 8,568,491 is: 18,638,270.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,939,155 : 8,568,491 = 8,568,491 : x
  2. Step 2: Convert to fraction form
    3,939,155/8,568,491 = 8,568,491/x
  3. Step 3: Cross multiply
    3,939,155x = 8,568,491 × 8,568,491
  4. Step 4: Simplify right side
    3,939,155x = 73,419,038,017,081
  5. Step 5: Solve for x
    x = 73,419,038,017,081/3,939,155
  6. Step 6: Final answer
    x = 18,638,270.90

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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.