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Finding the Fourth Proportional to 54,687.61, 81,939.07 and 33,583.67

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Solution

The fourth proportional to 54,687.61, 81,939.07 and 33,583.67 is: 50,318.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,687.61 : 81,939.07 = 33,583.67 : x
  2. Step 2: Convert to fraction form
    54,687.61/81,939.07 = 33,583.67/x
  3. Step 3: Cross multiply
    54,687.61x = 81,939.07 × 33,583.67
  4. Step 4: Simplify right side
    54,687.61x = 2,751,814,193.33
  5. Step 5: Solve for x
    x = 2,751,814,193.33/54,687.61
  6. Step 6: Final answer
    x = 50,318.79

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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.