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Finding the Third Proportional to 31,885,544,505 and 68,503,006,446

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Solution

The third proportional to 31,885,544,505 and 68,503,006,446 is: 147,172,079,542.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,885,544,505 : 68,503,006,446 = 68,503,006,446 : x
  2. Step 2: Convert to fraction form
    31,885,544,505/68,503,006,446 = 68,503,006,446/x
  3. Step 3: Cross multiply
    31,885,544,505x = 68,503,006,446 × 68,503,006,446
  4. Step 4: Simplify right side
    31,885,544,505x = 4,692,661,892,140,717,572,096
  5. Step 5: Solve for x
    x = 4,692,661,892,140,717,572,096/31,885,544,505
  6. Step 6: Final answer
    x = 147,172,079,542.34

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.