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Finding the Fourth Proportional to 18,247.82, 27,400.37 and 10,885.11

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Solution

The fourth proportional to 18,247.82, 27,400.37 and 10,885.11 is: 16,344.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,247.82 : 27,400.37 = 10,885.11 : x
  2. Step 2: Convert to fraction form
    18,247.82/27,400.37 = 10,885.11/x
  3. Step 3: Cross multiply
    18,247.82x = 27,400.37 × 10,885.11
  4. Step 4: Simplify right side
    18,247.82x = 298,255,987.07
  5. Step 5: Solve for x
    x = 298,255,987.07/18,247.82
  6. Step 6: Final answer
    x = 16,344.75

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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.