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Finding the Third Proportional to 21,987,855 and 47,383,713

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Solution

The third proportional to 21,987,855 and 47,383,713 is: 102,111,654.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,987,855 : 47,383,713 = 47,383,713 : x
  2. Step 2: Convert to fraction form
    21,987,855/47,383,713 = 47,383,713/x
  3. Step 3: Cross multiply
    21,987,855x = 47,383,713 × 47,383,713
  4. Step 4: Simplify right side
    21,987,855x = 2,245,216,257,666,369
  5. Step 5: Solve for x
    x = 2,245,216,257,666,369/21,987,855
  6. Step 6: Final answer
    x = 102,111,654.71

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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.