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Finding the Fourth Proportional to 18,092.01, 27,141.90 and 5,611.78

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Solution

The fourth proportional to 18,092.01, 27,141.90 and 5,611.78 is: 8,418.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,092.01 : 27,141.90 = 5,611.78 : x
  2. Step 2: Convert to fraction form
    18,092.01/27,141.90 = 5,611.78/x
  3. Step 3: Cross multiply
    18,092.01x = 27,141.90 × 5,611.78
  4. Step 4: Simplify right side
    18,092.01x = 152,314,371.58
  5. Step 5: Solve for x
    x = 152,314,371.58/18,092.01
  6. Step 6: Final answer
    x = 8,418.88

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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.