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Finding the Third Proportional to 21,818,530 and 47,467,802

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Solution

The third proportional to 21,818,530 and 47,467,802 is: 103,269,662.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,818,530 : 47,467,802 = 47,467,802 : x
  2. Step 2: Convert to fraction form
    21,818,530/47,467,802 = 47,467,802/x
  3. Step 3: Cross multiply
    21,818,530x = 47,467,802 × 47,467,802
  4. Step 4: Simplify right side
    21,818,530x = 2,253,192,226,711,204
  5. Step 5: Solve for x
    x = 2,253,192,226,711,204/21,818,530
  6. Step 6: Final answer
    x = 103,269,662.38

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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.