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Finding the Fourth Proportional to 18,091.73, 27,137.73 and 5,611.52

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Solution

The fourth proportional to 18,091.73, 27,137.73 and 5,611.52 is: 8,417.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,091.73 : 27,137.73 = 5,611.52 : x
  2. Step 2: Convert to fraction form
    18,091.73/27,137.73 = 5,611.52/x
  3. Step 3: Cross multiply
    18,091.73x = 27,137.73 × 5,611.52
  4. Step 4: Simplify right side
    18,091.73x = 152,283,914.65
  5. Step 5: Solve for x
    x = 152,283,914.65/18,091.73
  6. Step 6: Final answer
    x = 8,417.32

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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.