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Finding the Fourth Proportional to 19,662.62, 27,134.19 and 11,704.97

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Solution

The fourth proportional to 19,662.62, 27,134.19 and 11,704.97 is: 16,152.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,662.62 : 27,134.19 = 11,704.97 : x
  2. Step 2: Convert to fraction form
    19,662.62/27,134.19 = 11,704.97/x
  3. Step 3: Cross multiply
    19,662.62x = 27,134.19 × 11,704.97
  4. Step 4: Simplify right side
    19,662.62x = 317,604,947.76
  5. Step 5: Solve for x
    x = 317,604,947.76/19,662.62
  6. Step 6: Final answer
    x = 16,152.73

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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.