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Finding the Fourth Proportional to 18,299.28, 27,450.60 and 8,441.28

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Solution

The fourth proportional to 18,299.28, 27,450.60 and 8,441.28 is: 12,662.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,299.28 : 27,450.60 = 8,441.28 : x
  2. Step 2: Convert to fraction form
    18,299.28/27,450.60 = 8,441.28/x
  3. Step 3: Cross multiply
    18,299.28x = 27,450.60 × 8,441.28
  4. Step 4: Simplify right side
    18,299.28x = 231,718,200.77
  5. Step 5: Solve for x
    x = 231,718,200.77/18,299.28
  6. Step 6: Final answer
    x = 12,662.69

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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.