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Finding the Third Proportional to 20,786,886 and 45,351,180

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Solution

The third proportional to 20,786,886 and 45,351,180 is: 98,943,609.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,786,886 : 45,351,180 = 45,351,180 : x
  2. Step 2: Convert to fraction form
    20,786,886/45,351,180 = 45,351,180/x
  3. Step 3: Cross multiply
    20,786,886x = 45,351,180 × 45,351,180
  4. Step 4: Simplify right side
    20,786,886x = 2,056,729,527,392,400
  5. Step 5: Solve for x
    x = 2,056,729,527,392,400/20,786,886
  6. Step 6: Final answer
    x = 98,943,609.32

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.