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Finding the Third Proportional to 3,991,619.25 and 6,254,469

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Solution

The third proportional to 3,991,619.25 and 6,254,469 is: 9,800,128.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,991,619.25 : 6,254,469 = 6,254,469 : x
  2. Step 2: Convert to fraction form
    3,991,619.25/6,254,469 = 6,254,469/x
  3. Step 3: Cross multiply
    3,991,619.25x = 6,254,469 × 6,254,469
  4. Step 4: Simplify right side
    3,991,619.25x = 39,118,382,471,961
  5. Step 5: Solve for x
    x = 39,118,382,471,961/3,991,619.25
  6. Step 6: Final answer
    x = 9,800,128.73

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.