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Finding the Fourth Proportional to 18,163.82, 27,238.62 and 7,069.04

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Solution

The fourth proportional to 18,163.82, 27,238.62 and 7,069.04 is: 10,600.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,163.82 : 27,238.62 = 7,069.04 : x
  2. Step 2: Convert to fraction form
    18,163.82/27,238.62 = 7,069.04/x
  3. Step 3: Cross multiply
    18,163.82x = 27,238.62 × 7,069.04
  4. Step 4: Simplify right side
    18,163.82x = 192,550,894.32
  5. Step 5: Solve for x
    x = 192,550,894.32/18,163.82
  6. Step 6: Final answer
    x = 10,600.79

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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.