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Finding the Third Proportional to 18,318,887,534 and 39,679,647,858

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Solution

The third proportional to 18,318,887,534 and 39,679,647,858 is: 85,948,147,845.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,318,887,534 : 39,679,647,858 = 39,679,647,858 : x
  2. Step 2: Convert to fraction form
    18,318,887,534/39,679,647,858 = 39,679,647,858/x
  3. Step 3: Cross multiply
    18,318,887,534x = 39,679,647,858 × 39,679,647,858
  4. Step 4: Simplify right side
    18,318,887,534x = 1,574,474,454,134,883,876,864
  5. Step 5: Solve for x
    x = 1,574,474,454,134,883,876,864/18,318,887,534
  6. Step 6: Final answer
    x = 85,948,147,845.37

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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.