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Finding the Third Proportional to 21,987,857 and 47,383,717

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Solution

The third proportional to 21,987,857 and 47,383,717 is: 102,111,662.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,987,857 : 47,383,717 = 47,383,717 : x
  2. Step 2: Convert to fraction form
    21,987,857/47,383,717 = 47,383,717/x
  3. Step 3: Cross multiply
    21,987,857x = 47,383,717 × 47,383,717
  4. Step 4: Simplify right side
    21,987,857x = 2,245,216,636,736,089
  5. Step 5: Solve for x
    x = 2,245,216,636,736,089/21,987,857
  6. Step 6: Final answer
    x = 102,111,662.67

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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.