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Finding the Fourth Proportional to 54,908.52, 82,361.82 and 13,355.88

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Solution

The fourth proportional to 54,908.52, 82,361.82 and 13,355.88 is: 20,033.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,908.52 : 82,361.82 = 13,355.88 : x
  2. Step 2: Convert to fraction form
    54,908.52/82,361.82 = 13,355.88/x
  3. Step 3: Cross multiply
    54,908.52x = 82,361.82 × 13,355.88
  4. Step 4: Simplify right side
    54,908.52x = 1,100,014,584.50
  5. Step 5: Solve for x
    x = 1,100,014,584.50/54,908.52
  6. Step 6: Final answer
    x = 20,033.59

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.