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Finding the Fourth Proportional to 35,786.97, 49,388.97 and 19,872.45

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Solution

The fourth proportional to 35,786.97, 49,388.97 and 19,872.45 is: 27,425.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,786.97 : 49,388.97 = 19,872.45 : x
  2. Step 2: Convert to fraction form
    35,786.97/49,388.97 = 19,872.45/x
  3. Step 3: Cross multiply
    35,786.97x = 49,388.97 × 19,872.45
  4. Step 4: Simplify right side
    35,786.97x = 981,479,836.88
  5. Step 5: Solve for x
    x = 981,479,836.88/35,786.97
  6. Step 6: Final answer
    x = 27,425.62

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1.5x scale

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.