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Finding the Fourth Proportional to 18,082.60, 27,128.19 and 7,546.76

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Solution

The fourth proportional to 18,082.60, 27,128.19 and 7,546.76 is: 11,321.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,082.60 : 27,128.19 = 7,546.76 : x
  2. Step 2: Convert to fraction form
    18,082.60/27,128.19 = 7,546.76/x
  3. Step 3: Cross multiply
    18,082.60x = 27,128.19 × 7,546.76
  4. Step 4: Simplify right side
    18,082.60x = 204,729,939.16
  5. Step 5: Solve for x
    x = 204,729,939.16/18,082.60
  6. Step 6: Final answer
    x = 11,321.93

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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.