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Finding the Fourth Proportional to 11,168.76, 16,754.76 and 3,378.24

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Solution

The fourth proportional to 11,168.76, 16,754.76 and 3,378.24 is: 5,067.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,168.76 : 16,754.76 = 3,378.24 : x
  2. Step 2: Convert to fraction form
    11,168.76/16,754.76 = 3,378.24/x
  3. Step 3: Cross multiply
    11,168.76x = 16,754.76 × 3,378.24
  4. Step 4: Simplify right side
    11,168.76x = 56,601,600.42
  5. Step 5: Solve for x
    x = 56,601,600.42/11,168.76
  6. Step 6: Final answer
    x = 5,067.85

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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.