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Finding the Third Proportional to 18,819,321.75 and 28,769,888.25

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Solution

The third proportional to 18,819,321.75 and 28,769,888.25 is: 43,981,737.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,819,321.75 : 28,769,888.25 = 28,769,888.25 : x
  2. Step 2: Convert to fraction form
    18,819,321.75/28,769,888.25 = 28,769,888.25/x
  3. Step 3: Cross multiply
    18,819,321.75x = 28,769,888.25 × 28,769,888.25
  4. Step 4: Simplify right side
    18,819,321.75x = 827,706,469,917,488
  5. Step 5: Solve for x
    x = 827,706,469,917,488/18,819,321.75
  6. Step 6: Final answer
    x = 43,981,737.54

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.