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Finding the Fourth Proportional to 18,091.69, 27,137.29 and 8,093.79

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Solution

The fourth proportional to 18,091.69, 27,137.29 and 8,093.79 is: 12,140.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,091.69 : 27,137.29 = 8,093.79 : x
  2. Step 2: Convert to fraction form
    18,091.69/27,137.29 = 8,093.79/x
  3. Step 3: Cross multiply
    18,091.69x = 27,137.29 × 8,093.79
  4. Step 4: Simplify right side
    18,091.69x = 219,643,526.43
  5. Step 5: Solve for x
    x = 219,643,526.43/18,091.69
  6. Step 6: Final answer
    x = 12,140.58

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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.