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Finding the Fourth Proportional to 54,791.67, 82,155.79 and 21,472.73

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Solution

The fourth proportional to 54,791.67, 82,155.79 and 21,472.73 is: 32,196.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,791.67 : 82,155.79 = 21,472.73 : x
  2. Step 2: Convert to fraction form
    54,791.67/82,155.79 = 21,472.73/x
  3. Step 3: Cross multiply
    54,791.67x = 82,155.79 × 21,472.73
  4. Step 4: Simplify right side
    54,791.67x = 1,764,109,096.61
  5. Step 5: Solve for x
    x = 1,764,109,096.61/54,791.67
  6. Step 6: Final answer
    x = 32,196.67

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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.