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Finding the Third Proportional to 3,947,749.50 and 8,482,711.50

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Solution

The third proportional to 3,947,749.50 and 8,482,711.50 is: 18,227,193.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,947,749.50 : 8,482,711.50 = 8,482,711.50 : x
  2. Step 2: Convert to fraction form
    3,947,749.50/8,482,711.50 = 8,482,711.50/x
  3. Step 3: Cross multiply
    3,947,749.50x = 8,482,711.50 × 8,482,711.50
  4. Step 4: Simplify right side
    3,947,749.50x = 71,956,394,392,232.25
  5. Step 5: Solve for x
    x = 71,956,394,392,232.25/3,947,749.50
  6. Step 6: Final answer
    x = 18,227,193.59

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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.