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Finding the Third Proportional to 2,988,717.75 and 6,412,830.75

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Solution

The third proportional to 2,988,717.75 and 6,412,830.75 is: 13,759,880.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,988,717.75 : 6,412,830.75 = 6,412,830.75 : x
  2. Step 2: Convert to fraction form
    2,988,717.75/6,412,830.75 = 6,412,830.75/x
  3. Step 3: Cross multiply
    2,988,717.75x = 6,412,830.75 × 6,412,830.75
  4. Step 4: Simplify right side
    2,988,717.75x = 41,124,398,228,145.56
  5. Step 5: Solve for x
    x = 41,124,398,228,145.56/2,988,717.75
  6. Step 6: Final answer
    x = 13,759,880.21

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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.