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Finding the Third Proportional to 3,967,197.75 and 5,481,766.13

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Solution

The third proportional to 3,967,197.75 and 5,481,766.13 is: 7,574,555.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,967,197.75 : 5,481,766.13 = 5,481,766.13 : x
  2. Step 2: Convert to fraction form
    3,967,197.75/5,481,766.13 = 5,481,766.13/x
  3. Step 3: Cross multiply
    3,967,197.75x = 5,481,766.13 × 5,481,766.13
  4. Step 4: Simplify right side
    3,967,197.75x = 30,049,759,849,197.52
  5. Step 5: Solve for x
    x = 30,049,759,849,197.52/3,967,197.75
  6. Step 6: Final answer
    x = 7,574,555.58

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.