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Finding the Third Proportional to 39,264,370 and 86,317,676

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Solution

The third proportional to 39,264,370 and 86,317,676 is: 189,758,327.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,264,370 : 86,317,676 = 86,317,676 : x
  2. Step 2: Convert to fraction form
    39,264,370/86,317,676 = 86,317,676/x
  3. Step 3: Cross multiply
    39,264,370x = 86,317,676 × 86,317,676
  4. Step 4: Simplify right side
    39,264,370x = 7,450,741,190,040,976
  5. Step 5: Solve for x
    x = 7,450,741,190,040,976/39,264,370
  6. Step 6: Final answer
    x = 189,758,327.72

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.