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Finding the Third Proportional to 20,874,109 and 33,555,021

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Solution

The third proportional to 20,874,109 and 33,555,021 is: 53,939,520.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,874,109 : 33,555,021 = 33,555,021 : x
  2. Step 2: Convert to fraction form
    20,874,109/33,555,021 = 33,555,021/x
  3. Step 3: Cross multiply
    20,874,109x = 33,555,021 × 33,555,021
  4. Step 4: Simplify right side
    20,874,109x = 1,125,939,434,310,441
  5. Step 5: Solve for x
    x = 1,125,939,434,310,441/20,874,109
  6. Step 6: Final answer
    x = 53,939,520.69

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Why These Related Problems?

These problems maintain the same ratio (1.61) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.