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Finding the Third Proportional to 3,972,672,076 and 8,515,721,496

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Solution

The third proportional to 3,972,672,076 and 8,515,721,496 is: 18,254,089,743.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,972,672,076 : 8,515,721,496 = 8,515,721,496 : x
  2. Step 2: Convert to fraction form
    3,972,672,076/8,515,721,496 = 8,515,721,496/x
  3. Step 3: Cross multiply
    3,972,672,076x = 8,515,721,496 × 8,515,721,496
  4. Step 4: Simplify right side
    3,972,672,076x = 72,517,512,597,436,481,536
  5. Step 5: Solve for x
    x = 72,517,512,597,436,481,536/3,972,672,076
  6. Step 6: Final answer
    x = 18,254,089,743.66

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.