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Finding the Third Proportional to 3,267,418 and 7,179,728

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Solution

The third proportional to 3,267,418 and 7,179,728 is: 15,776,522.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,267,418 : 7,179,728 = 7,179,728 : x
  2. Step 2: Convert to fraction form
    3,267,418/7,179,728 = 7,179,728/x
  3. Step 3: Cross multiply
    3,267,418x = 7,179,728 × 7,179,728
  4. Step 4: Simplify right side
    3,267,418x = 51,548,494,153,984
  5. Step 5: Solve for x
    x = 51,548,494,153,984/3,267,418
  6. Step 6: Final answer
    x = 15,776,522.67

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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.