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Finding the Fourth Proportional to 18,523.42, 27,800.85 and 7,437.61

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Solution

The fourth proportional to 18,523.42, 27,800.85 and 7,437.61 is: 11,162.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,523.42 : 27,800.85 = 7,437.61 : x
  2. Step 2: Convert to fraction form
    18,523.42/27,800.85 = 7,437.61/x
  3. Step 3: Cross multiply
    18,523.42x = 27,800.85 × 7,437.61
  4. Step 4: Simplify right side
    18,523.42x = 206,771,879.97
  5. Step 5: Solve for x
    x = 206,771,879.97/18,523.42
  6. Step 6: Final answer
    x = 11,162.73

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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.