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Finding the Third Proportional to 2,988,738 and 6,412,871.25

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Solution

The third proportional to 2,988,738 and 6,412,871.25 is: 13,759,960.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,988,738 : 6,412,871.25 = 6,412,871.25 : x
  2. Step 2: Convert to fraction form
    2,988,738/6,412,871.25 = 6,412,871.25/x
  3. Step 3: Cross multiply
    2,988,738x = 6,412,871.25 × 6,412,871.25
  4. Step 4: Simplify right side
    2,988,738x = 41,124,917,669,076.56
  5. Step 5: Solve for x
    x = 41,124,917,669,076.56/2,988,738
  6. Step 6: Final answer
    x = 13,759,960.78

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.