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Finding the Fourth Proportional to 18,590.60, 27,883.20 and 5,441.60

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Solution

The fourth proportional to 18,590.60, 27,883.20 and 5,441.60 is: 8,161.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,590.60 : 27,883.20 = 5,441.60 : x
  2. Step 2: Convert to fraction form
    18,590.60/27,883.20 = 5,441.60/x
  3. Step 3: Cross multiply
    18,590.60x = 27,883.20 × 5,441.60
  4. Step 4: Simplify right side
    18,590.60x = 151,729,221.12
  5. Step 5: Solve for x
    x = 151,729,221.12/18,590.60
  6. Step 6: Final answer
    x = 8,161.61

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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.