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Finding the Fourth Proportional to 18,173.51, 27,255.49 and 12,246.97

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Solution

The fourth proportional to 18,173.51, 27,255.49 and 12,246.97 is: 18,367.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,173.51 : 27,255.49 = 12,246.97 : x
  2. Step 2: Convert to fraction form
    18,173.51/27,255.49 = 12,246.97/x
  3. Step 3: Cross multiply
    18,173.51x = 27,255.49 × 12,246.97
  4. Step 4: Simplify right side
    18,173.51x = 333,797,197.37
  5. Step 5: Solve for x
    x = 333,797,197.37/18,173.51
  6. Step 6: Final answer
    x = 18,367.23

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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.