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Finding the Third Proportional to 1,915,858 and 3,192,968.75

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Solution

The third proportional to 1,915,858 and 3,192,968.75 is: 5,321,401.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,915,858 : 3,192,968.75 = 3,192,968.75 : x
  2. Step 2: Convert to fraction form
    1,915,858/3,192,968.75 = 3,192,968.75/x
  3. Step 3: Cross multiply
    1,915,858x = 3,192,968.75 × 3,192,968.75
  4. Step 4: Simplify right side
    1,915,858x = 10,195,049,438,476.56
  5. Step 5: Solve for x
    x = 10,195,049,438,476.56/1,915,858
  6. Step 6: Final answer
    x = 5,321,401.40

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Why These Related Problems?

These problems maintain the same ratio (1.67) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.