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Finding the Fourth Proportional to 12,608.06, 18,906.62 and 6,367.82

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Solution

The fourth proportional to 12,608.06, 18,906.62 and 6,367.82 is: 9,548.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,608.06 : 18,906.62 = 6,367.82 : x
  2. Step 2: Convert to fraction form
    12,608.06/18,906.62 = 6,367.82/x
  3. Step 3: Cross multiply
    12,608.06x = 18,906.62 × 6,367.82
  4. Step 4: Simplify right side
    12,608.06x = 120,393,826.60
  5. Step 5: Solve for x
    x = 120,393,826.60/12,608.06
  6. Step 6: Final answer
    x = 9,548.96

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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.