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Finding the Fourth Proportional to 18,174.78, 27,233.01 and 7,074.54

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Solution

The fourth proportional to 18,174.78, 27,233.01 and 7,074.54 is: 10,600.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,174.78 : 27,233.01 = 7,074.54 : x
  2. Step 2: Convert to fraction form
    18,174.78/27,233.01 = 7,074.54/x
  3. Step 3: Cross multiply
    18,174.78x = 27,233.01 × 7,074.54
  4. Step 4: Simplify right side
    18,174.78x = 192,661,018.57
  5. Step 5: Solve for x
    x = 192,661,018.57/18,174.78
  6. Step 6: Final answer
    x = 10,600.46

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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.