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Finding the Third Proportional to 3,975,212,690 and 8,612,924,906

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Solution

The third proportional to 3,975,212,690 and 8,612,924,906 is: 18,661,259,464.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,975,212,690 : 8,612,924,906 = 8,612,924,906 : x
  2. Step 2: Convert to fraction form
    3,975,212,690/8,612,924,906 = 8,612,924,906/x
  3. Step 3: Cross multiply
    3,975,212,690x = 8,612,924,906 × 8,612,924,906
  4. Step 4: Simplify right side
    3,975,212,690x = 74,182,475,436,395,102,208
  5. Step 5: Solve for x
    x = 74,182,475,436,395,102,208/3,975,212,690
  6. Step 6: Final answer
    x = 18,661,259,464.94

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.