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Finding the Fourth Proportional to 18,065.00, 27,087.75 and 8,198.91

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Solution

The fourth proportional to 18,065.00, 27,087.75 and 8,198.91 is: 12,293.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,065.00 : 27,087.75 = 8,198.91 : x
  2. Step 2: Convert to fraction form
    18,065.00/27,087.75 = 8,198.91/x
  3. Step 3: Cross multiply
    18,065.00x = 27,087.75 × 8,198.91
  4. Step 4: Simplify right side
    18,065.00x = 222,090,024.35
  5. Step 5: Solve for x
    x = 222,090,024.35/18,065.00
  6. Step 6: Final answer
    x = 12,293.94

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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.