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Finding the Third Proportional to 4,123,163.25 and 8,978,181.75

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Solution

The third proportional to 4,123,163.25 and 8,978,181.75 is: 19,549,977.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,123,163.25 : 8,978,181.75 = 8,978,181.75 : x
  2. Step 2: Convert to fraction form
    4,123,163.25/8,978,181.75 = 8,978,181.75/x
  3. Step 3: Cross multiply
    4,123,163.25x = 8,978,181.75 × 8,978,181.75
  4. Step 4: Simplify right side
    4,123,163.25x = 80,607,747,536,033.06
  5. Step 5: Solve for x
    x = 80,607,747,536,033.06/4,123,163.25
  6. Step 6: Final answer
    x = 19,549,977.20

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.