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Finding the Fourth Proportional to 54,383.88, 81,591.62 and 19,326.27

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Solution

The fourth proportional to 54,383.88, 81,591.62 and 19,326.27 is: 28,995.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,383.88 : 81,591.62 = 19,326.27 : x
  2. Step 2: Convert to fraction form
    54,383.88/81,591.62 = 19,326.27/x
  3. Step 3: Cross multiply
    54,383.88x = 81,591.62 × 19,326.27
  4. Step 4: Simplify right side
    54,383.88x = 1,576,861,581.23
  5. Step 5: Solve for x
    x = 1,576,861,581.23/54,383.88
  6. Step 6: Final answer
    x = 28,995.02

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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.