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Finding the Fourth Proportional to 18,014.58, 27,021.29 and 8,153.85

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Solution

The fourth proportional to 18,014.58, 27,021.29 and 8,153.85 is: 12,230.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,014.58 : 27,021.29 = 8,153.85 : x
  2. Step 2: Convert to fraction form
    18,014.58/27,021.29 = 8,153.85/x
  3. Step 3: Cross multiply
    18,014.58x = 27,021.29 × 8,153.85
  4. Step 4: Simplify right side
    18,014.58x = 220,327,504.70
  5. Step 5: Solve for x
    x = 220,327,504.70/18,014.58
  6. Step 6: Final answer
    x = 12,230.51

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Half scale
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Double scale
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Similar ratio
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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.