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Finding the Fourth Proportional to 18,172.92, 27,238.86 and 9,263.22

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Solution

The fourth proportional to 18,172.92, 27,238.86 and 9,263.22 is: 13,884.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,172.92 : 27,238.86 = 9,263.22 : x
  2. Step 2: Convert to fraction form
    18,172.92/27,238.86 = 9,263.22/x
  3. Step 3: Cross multiply
    18,172.92x = 27,238.86 × 9,263.22
  4. Step 4: Simplify right side
    18,172.92x = 252,319,552.73
  5. Step 5: Solve for x
    x = 252,319,552.73/18,172.92
  6. Step 6: Final answer
    x = 13,884.37

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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.