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Finding the Fourth Proportional to 18,215.91, 27,324.83 and 5,736.91

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Solution

The fourth proportional to 18,215.91, 27,324.83 and 5,736.91 is: 8,605.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,215.91 : 27,324.83 = 5,736.91 : x
  2. Step 2: Convert to fraction form
    18,215.91/27,324.83 = 5,736.91/x
  3. Step 3: Cross multiply
    18,215.91x = 27,324.83 × 5,736.91
  4. Step 4: Simplify right side
    18,215.91x = 156,760,022.16
  5. Step 5: Solve for x
    x = 156,760,022.16/18,215.91
  6. Step 6: Final answer
    x = 8,605.67

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1.5x scale

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.