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Finding the Fourth Proportional to 27,016.80, 40,515.60 and 12,232.80

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Solution

The fourth proportional to 27,016.80, 40,515.60 and 12,232.80 is: 18,344.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,016.80 : 40,515.60 = 12,232.80 : x
  2. Step 2: Convert to fraction form
    27,016.80/40,515.60 = 12,232.80/x
  3. Step 3: Cross multiply
    27,016.80x = 40,515.60 × 12,232.80
  4. Step 4: Simplify right side
    27,016.80x = 495,619,231.68
  5. Step 5: Solve for x
    x = 495,619,231.68/27,016.80
  6. Step 6: Final answer
    x = 18,344.85

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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.