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Finding the Fourth Proportional to 18,092.64, 27,142.23 and 5,611.80

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Solution

The fourth proportional to 18,092.64, 27,142.23 and 5,611.80 is: 8,418.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,092.64 : 27,142.23 = 5,611.80 : x
  2. Step 2: Convert to fraction form
    18,092.64/27,142.23 = 5,611.80/x
  3. Step 3: Cross multiply
    18,092.64x = 27,142.23 × 5,611.80
  4. Step 4: Simplify right side
    18,092.64x = 152,316,766.31
  5. Step 5: Solve for x
    x = 152,316,766.31/18,092.64
  6. Step 6: Final answer
    x = 8,418.71

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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.