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Finding the Fourth Proportional to 18,295.44, 27,480.66 and 12,064.44

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Solution

The fourth proportional to 18,295.44, 27,480.66 and 12,064.44 is: 18,121.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,295.44 : 27,480.66 = 12,064.44 : x
  2. Step 2: Convert to fraction form
    18,295.44/27,480.66 = 12,064.44/x
  3. Step 3: Cross multiply
    18,295.44x = 27,480.66 × 12,064.44
  4. Step 4: Simplify right side
    18,295.44x = 331,538,773.73
  5. Step 5: Solve for x
    x = 331,538,773.73/18,295.44
  6. Step 6: Final answer
    x = 18,121.39

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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.