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Finding the Fourth Proportional to 18,074.68, 27,107.40 and 5,591.40

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Solution

The fourth proportional to 18,074.68, 27,107.40 and 5,591.40 is: 8,385.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,074.68 : 27,107.40 = 5,591.40 : x
  2. Step 2: Convert to fraction form
    18,074.68/27,107.40 = 5,591.40/x
  3. Step 3: Cross multiply
    18,074.68x = 27,107.40 × 5,591.40
  4. Step 4: Simplify right side
    18,074.68x = 151,568,316.36
  5. Step 5: Solve for x
    x = 151,568,316.36/18,074.68
  6. Step 6: Final answer
    x = 8,385.67

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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.