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Finding the Fourth Proportional to 18,505.92, 27,761.49 and 6,021.93

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Solution

The fourth proportional to 18,505.92, 27,761.49 and 6,021.93 is: 9,033.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,505.92 : 27,761.49 = 6,021.93 : x
  2. Step 2: Convert to fraction form
    18,505.92/27,761.49 = 6,021.93/x
  3. Step 3: Cross multiply
    18,505.92x = 27,761.49 × 6,021.93
  4. Step 4: Simplify right side
    18,505.92x = 167,177,749.48
  5. Step 5: Solve for x
    x = 167,177,749.48/18,505.92
  6. Step 6: Final answer
    x = 9,033.74

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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.