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Finding the Third Proportional to 21,361,977 and 47,080,458

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Solution

The third proportional to 21,361,977 and 47,080,458 is: 103,762,377.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,361,977 : 47,080,458 = 47,080,458 : x
  2. Step 2: Convert to fraction form
    21,361,977/47,080,458 = 47,080,458/x
  3. Step 3: Cross multiply
    21,361,977x = 47,080,458 × 47,080,458
  4. Step 4: Simplify right side
    21,361,977x = 2,216,569,525,489,764
  5. Step 5: Solve for x
    x = 2,216,569,525,489,764/21,361,977
  6. Step 6: Final answer
    x = 103,762,377.68

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.