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Finding the Fourth Proportional to 18,558.99, 27,843.21 and 6,079.86

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Solution

The fourth proportional to 18,558.99, 27,843.21 and 6,079.86 is: 9,121.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,558.99 : 27,843.21 = 6,079.86 : x
  2. Step 2: Convert to fraction form
    18,558.99/27,843.21 = 6,079.86/x
  3. Step 3: Cross multiply
    18,558.99x = 27,843.21 × 6,079.86
  4. Step 4: Simplify right side
    18,558.99x = 169,282,818.75
  5. Step 5: Solve for x
    x = 169,282,818.75/18,558.99
  6. Step 6: Final answer
    x = 9,121.34

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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.