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Finding the Fourth Proportional to 12,796.44, 19,194.78 and 5,396.22

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Solution

The fourth proportional to 12,796.44, 19,194.78 and 5,396.22 is: 8,094.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,796.44 : 19,194.78 = 5,396.22 : x
  2. Step 2: Convert to fraction form
    12,796.44/19,194.78 = 5,396.22/x
  3. Step 3: Cross multiply
    12,796.44x = 19,194.78 × 5,396.22
  4. Step 4: Simplify right side
    12,796.44x = 103,579,255.73
  5. Step 5: Solve for x
    x = 103,579,255.73/12,796.44
  6. Step 6: Final answer
    x = 8,094.38

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Double scale
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Similar ratio
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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.