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Finding the Fourth Proportional to 18,697.44, 25,811.82 and 11,626.14

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Solution

The fourth proportional to 18,697.44, 25,811.82 and 11,626.14 is: 16,049.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,697.44 : 25,811.82 = 11,626.14 : x
  2. Step 2: Convert to fraction form
    18,697.44/25,811.82 = 11,626.14/x
  3. Step 3: Cross multiply
    18,697.44x = 25,811.82 × 11,626.14
  4. Step 4: Simplify right side
    18,697.44x = 300,091,832.97
  5. Step 5: Solve for x
    x = 300,091,832.97/18,697.44
  6. Step 6: Final answer
    x = 16,049.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.