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Finding the Fourth Proportional to 20,235.69, 27,926.24 and 11,737.71

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Solution

The fourth proportional to 20,235.69, 27,926.24 and 11,737.71 is: 16,198.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,235.69 : 27,926.24 = 11,737.71 : x
  2. Step 2: Convert to fraction form
    20,235.69/27,926.24 = 11,737.71/x
  3. Step 3: Cross multiply
    20,235.69x = 27,926.24 × 11,737.71
  4. Step 4: Simplify right side
    20,235.69x = 327,790,047.82
  5. Step 5: Solve for x
    x = 327,790,047.82/20,235.69
  6. Step 6: Final answer
    x = 16,198.61

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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.