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Finding the Fourth Proportional to 18,014.70, 27,022.05 and 11,793.90

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Solution

The fourth proportional to 18,014.70, 27,022.05 and 11,793.90 is: 17,690.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,014.70 : 27,022.05 = 11,793.90 : x
  2. Step 2: Convert to fraction form
    18,014.70/27,022.05 = 11,793.90/x
  3. Step 3: Cross multiply
    18,014.70x = 27,022.05 × 11,793.90
  4. Step 4: Simplify right side
    18,014.70x = 318,695,355.50
  5. Step 5: Solve for x
    x = 318,695,355.50/18,014.70
  6. Step 6: Final answer
    x = 17,690.85

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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.