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Finding the Third Proportional to 4,279,325,917 and 9,318,359,042

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Solution

The third proportional to 4,279,325,917 and 9,318,359,042 is: 20,291,003,050.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,279,325,917 : 9,318,359,042 = 9,318,359,042 : x
  2. Step 2: Convert to fraction form
    4,279,325,917/9,318,359,042 = 9,318,359,042/x
  3. Step 3: Cross multiply
    4,279,325,917x = 9,318,359,042 × 9,318,359,042
  4. Step 4: Simplify right side
    4,279,325,917x = 86,831,815,235,623,157,760
  5. Step 5: Solve for x
    x = 86,831,815,235,623,157,760/4,279,325,917
  6. Step 6: Final answer
    x = 20,291,003,050.43

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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.