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Finding the Third Proportional to 4,639,900 and 10,221,992

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Solution

The third proportional to 4,639,900 and 10,221,992 is: 22,519,692.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,639,900 : 10,221,992 = 10,221,992 : x
  2. Step 2: Convert to fraction form
    4,639,900/10,221,992 = 10,221,992/x
  3. Step 3: Cross multiply
    4,639,900x = 10,221,992 × 10,221,992
  4. Step 4: Simplify right side
    4,639,900x = 104,489,120,448,064
  5. Step 5: Solve for x
    x = 104,489,120,448,064/4,639,900
  6. Step 6: Final answer
    x = 22,519,692.33

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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.