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Finding the Fourth Proportional to 18,205.44, 25,096.41 and 11,127.12

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Solution

The fourth proportional to 18,205.44, 25,096.41 and 11,127.12 is: 15,338.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,205.44 : 25,096.41 = 11,127.12 : x
  2. Step 2: Convert to fraction form
    18,205.44/25,096.41 = 11,127.12/x
  3. Step 3: Cross multiply
    18,205.44x = 25,096.41 × 11,127.12
  4. Step 4: Simplify right side
    18,205.44x = 279,250,765.64
  5. Step 5: Solve for x
    x = 279,250,765.64/18,205.44
  6. Step 6: Final answer
    x = 15,338.86

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Half scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.