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Finding the Fourth Proportional to 18,627.44, 27,944.82 and 6,146.96

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Solution

The fourth proportional to 18,627.44, 27,944.82 and 6,146.96 is: 9,221.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,627.44 : 27,944.82 = 6,146.96 : x
  2. Step 2: Convert to fraction form
    18,627.44/27,944.82 = 6,146.96/x
  3. Step 3: Cross multiply
    18,627.44x = 27,944.82 × 6,146.96
  4. Step 4: Simplify right side
    18,627.44x = 171,775,690.75
  5. Step 5: Solve for x
    x = 171,775,690.75/18,627.44
  6. Step 6: Final answer
    x = 9,221.65

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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.