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Finding the Fourth Proportional to 6,311.66, 9,467.46 and 1,928.96

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Solution

The fourth proportional to 6,311.66, 9,467.46 and 1,928.96 is: 2,893.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,311.66 : 9,467.46 = 1,928.96 : x
  2. Step 2: Convert to fraction form
    6,311.66/9,467.46 = 1,928.96/x
  3. Step 3: Cross multiply
    6,311.66x = 9,467.46 × 1,928.96
  4. Step 4: Simplify right side
    6,311.66x = 18,262,351.64
  5. Step 5: Solve for x
    x = 18,262,351.64/6,311.66
  6. Step 6: Final answer
    x = 2,893.43

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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.