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Finding the Fourth Proportional to 18,134.11, 27,209.54 and 8,276.41

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Solution

The fourth proportional to 18,134.11, 27,209.54 and 8,276.41 is: 12,418.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,134.11 : 27,209.54 = 8,276.41 : x
  2. Step 2: Convert to fraction form
    18,134.11/27,209.54 = 8,276.41/x
  3. Step 3: Cross multiply
    18,134.11x = 27,209.54 × 8,276.41
  4. Step 4: Simplify right side
    18,134.11x = 225,197,261.62
  5. Step 5: Solve for x
    x = 225,197,261.62/18,134.11
  6. Step 6: Final answer
    x = 12,418.44

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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.