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Finding the Third Proportional to 20,128,488 and 43,443,912

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Solution

The third proportional to 20,128,488 and 43,443,912 is: 93,766,282.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,128,488 : 43,443,912 = 43,443,912 : x
  2. Step 2: Convert to fraction form
    20,128,488/43,443,912 = 43,443,912/x
  3. Step 3: Cross multiply
    20,128,488x = 43,443,912 × 43,443,912
  4. Step 4: Simplify right side
    20,128,488x = 1,887,373,489,863,744
  5. Step 5: Solve for x
    x = 1,887,373,489,863,744/20,128,488
  6. Step 6: Final answer
    x = 93,766,282.39

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.