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Finding the Fourth Proportional to 18,481.05, 27,704.97 and 6,791.40

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Solution

The fourth proportional to 18,481.05, 27,704.97 and 6,791.40 is: 10,181.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,481.05 : 27,704.97 = 6,791.40 : x
  2. Step 2: Convert to fraction form
    18,481.05/27,704.97 = 6,791.40/x
  3. Step 3: Cross multiply
    18,481.05x = 27,704.97 × 6,791.40
  4. Step 4: Simplify right side
    18,481.05x = 188,155,533.26
  5. Step 5: Solve for x
    x = 188,155,533.26/18,481.05
  6. Step 6: Final answer
    x = 10,181.00

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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.