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Finding the Third Proportional to 20,873,991 and 45,452,961.75

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Solution

The third proportional to 20,873,991 and 45,452,961.75 is: 98,973,489.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,873,991 : 45,452,961.75 = 45,452,961.75 : x
  2. Step 2: Convert to fraction form
    20,873,991/45,452,961.75 = 45,452,961.75/x
  3. Step 3: Cross multiply
    20,873,991x = 45,452,961.75 × 45,452,961.75
  4. Step 4: Simplify right side
    20,873,991x = 2,065,971,731,846,963
  5. Step 5: Solve for x
    x = 2,065,971,731,846,963/20,873,991
  6. Step 6: Final answer
    x = 98,973,489.63

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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.