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Finding the Fourth Proportional to 18,093.44, 24,977.50 and 12,129.02

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Solution

The fourth proportional to 18,093.44, 24,977.50 and 12,129.02 is: 16,743.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,093.44 : 24,977.50 = 12,129.02 : x
  2. Step 2: Convert to fraction form
    18,093.44/24,977.50 = 12,129.02/x
  3. Step 3: Cross multiply
    18,093.44x = 24,977.50 × 12,129.02
  4. Step 4: Simplify right side
    18,093.44x = 302,952,597.05
  5. Step 5: Solve for x
    x = 302,952,597.05/18,093.44
  6. Step 6: Final answer
    x = 16,743.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.