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Finding the Third Proportional to 3,939,628.50 and 8,467,722

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Solution

The third proportional to 3,939,628.50 and 8,467,722 is: 18,200,273.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,939,628.50 : 8,467,722 = 8,467,722 : x
  2. Step 2: Convert to fraction form
    3,939,628.50/8,467,722 = 8,467,722/x
  3. Step 3: Cross multiply
    3,939,628.50x = 8,467,722 × 8,467,722
  4. Step 4: Simplify right side
    3,939,628.50x = 71,702,315,869,284
  5. Step 5: Solve for x
    x = 71,702,315,869,284/3,939,628.50
  6. Step 6: Final answer
    x = 18,200,273.42

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.