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Finding the Fourth Proportional to 11,991.22, 17,992.39 and 4,593.22

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Solution

The fourth proportional to 11,991.22, 17,992.39 and 4,593.22 is: 6,891.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,991.22 : 17,992.39 = 4,593.22 : x
  2. Step 2: Convert to fraction form
    11,991.22/17,992.39 = 4,593.22/x
  3. Step 3: Cross multiply
    11,991.22x = 17,992.39 × 4,593.22
  4. Step 4: Simplify right side
    11,991.22x = 82,643,005.60
  5. Step 5: Solve for x
    x = 82,643,005.60/11,991.22
  6. Step 6: Final answer
    x = 6,891.96

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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.