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Finding the Fourth Proportional to 16,791.80, 25,183.74 and 7,426.70

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Solution

The fourth proportional to 16,791.80, 25,183.74 and 7,426.70 is: 11,138.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,791.80 : 25,183.74 = 7,426.70 : x
  2. Step 2: Convert to fraction form
    16,791.80/25,183.74 = 7,426.70/x
  3. Step 3: Cross multiply
    16,791.80x = 25,183.74 × 7,426.70
  4. Step 4: Simplify right side
    16,791.80x = 187,032,081.86
  5. Step 5: Solve for x
    x = 187,032,081.86/16,791.80
  6. Step 6: Final answer
    x = 11,138.30

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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.