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Finding the Third Proportional to 38,605,778 and 80,387,108

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Solution

The third proportional to 38,605,778 and 80,387,108 is: 167,386,527.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,605,778 : 80,387,108 = 80,387,108 : x
  2. Step 2: Convert to fraction form
    38,605,778/80,387,108 = 80,387,108/x
  3. Step 3: Cross multiply
    38,605,778x = 80,387,108 × 80,387,108
  4. Step 4: Simplify right side
    38,605,778x = 6,462,087,132,603,664
  5. Step 5: Solve for x
    x = 6,462,087,132,603,664/38,605,778
  6. Step 6: Final answer
    x = 167,386,527.80

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Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.