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Finding the Fourth Proportional to 18,556.44, 27,850.16 and 17,388.68

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Solution

The fourth proportional to 18,556.44, 27,850.16 and 17,388.68 is: 26,097.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,556.44 : 27,850.16 = 17,388.68 : x
  2. Step 2: Convert to fraction form
    18,556.44/27,850.16 = 17,388.68/x
  3. Step 3: Cross multiply
    18,556.44x = 27,850.16 × 17,388.68
  4. Step 4: Simplify right side
    18,556.44x = 484,277,520.19
  5. Step 5: Solve for x
    x = 484,277,520.19/18,556.44
  6. Step 6: Final answer
    x = 26,097.54

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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.