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Finding the Fourth Proportional to 18,049.79, 27,080.16 and 7,524.86

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Solution

The fourth proportional to 18,049.79, 27,080.16 and 7,524.86 is: 11,289.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,049.79 : 27,080.16 = 7,524.86 : x
  2. Step 2: Convert to fraction form
    18,049.79/27,080.16 = 7,524.86/x
  3. Step 3: Cross multiply
    18,049.79x = 27,080.16 × 7,524.86
  4. Step 4: Simplify right side
    18,049.79x = 203,774,249.16
  5. Step 5: Solve for x
    x = 203,774,249.16/18,049.79
  6. Step 6: Final answer
    x = 11,289.56

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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.