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Finding the Third Proportional to 6,620,216.50 and 10,122,712.75

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Solution

The third proportional to 6,620,216.50 and 10,122,712.75 is: 15,478,242.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,620,216.50 : 10,122,712.75 = 10,122,712.75 : x
  2. Step 2: Convert to fraction form
    6,620,216.50/10,122,712.75 = 10,122,712.75/x
  3. Step 3: Cross multiply
    6,620,216.50x = 10,122,712.75 × 10,122,712.75
  4. Step 4: Simplify right side
    6,620,216.50x = 102,469,313,419,012.56
  5. Step 5: Solve for x
    x = 102,469,313,419,012.56/6,620,216.50
  6. Step 6: Final answer
    x = 15,478,242.05

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.