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Finding the Third Proportional to 20,455,173 and 45,450,801

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Solution

The third proportional to 20,455,173 and 45,450,801 is: 100,990,361.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,455,173 : 45,450,801 = 45,450,801 : x
  2. Step 2: Convert to fraction form
    20,455,173/45,450,801 = 45,450,801/x
  3. Step 3: Cross multiply
    20,455,173x = 45,450,801 × 45,450,801
  4. Step 4: Simplify right side
    20,455,173x = 2,065,775,311,541,601
  5. Step 5: Solve for x
    x = 2,065,775,311,541,601/20,455,173
  6. Step 6: Final answer
    x = 100,990,361.29

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Why These Related Problems?

These problems maintain the same ratio (2.22) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.