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Finding the Fourth Proportional to 18,296.88, 27,446.94 and 5,819.64

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Solution

The fourth proportional to 18,296.88, 27,446.94 and 5,819.64 is: 8,729.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,296.88 : 27,446.94 = 5,819.64 : x
  2. Step 2: Convert to fraction form
    18,296.88/27,446.94 = 5,819.64/x
  3. Step 3: Cross multiply
    18,296.88x = 27,446.94 × 5,819.64
  4. Step 4: Simplify right side
    18,296.88x = 159,731,309.90
  5. Step 5: Solve for x
    x = 159,731,309.90/18,296.88
  6. Step 6: Final answer
    x = 8,729.98

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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.