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Finding the Third Proportional to 17,890,001.72 and 39,294,546.61

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Solution

The third proportional to 17,890,001.72 and 39,294,546.61 is: 86,308,621.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,890,001.72 : 39,294,546.61 = 39,294,546.61 : x
  2. Step 2: Convert to fraction form
    17,890,001.72/39,294,546.61 = 39,294,546.61/x
  3. Step 3: Cross multiply
    17,890,001.72x = 39,294,546.61 × 39,294,546.61
  4. Step 4: Simplify right side
    17,890,001.72x = 1,544,061,393,236,344.25
  5. Step 5: Solve for x
    x = 1,544,061,393,236,344.25/17,890,001.72
  6. Step 6: Final answer
    x = 86,308,621.85

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.