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Finding the Third Proportional to 39,019,968 and 85,764,542

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Solution

The third proportional to 39,019,968 and 85,764,542 is: 188,507,501.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,019,968 : 85,764,542 = 85,764,542 : x
  2. Step 2: Convert to fraction form
    39,019,968/85,764,542 = 85,764,542/x
  3. Step 3: Cross multiply
    39,019,968x = 85,764,542 × 85,764,542
  4. Step 4: Simplify right side
    39,019,968x = 7,355,556,664,469,764
  5. Step 5: Solve for x
    x = 7,355,556,664,469,764/39,019,968
  6. Step 6: Final answer
    x = 188,507,501.20

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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.