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Finding the Fourth Proportional to 18,711.99, 28,046.73 and 6,229.08

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Solution

The fourth proportional to 18,711.99, 28,046.73 and 6,229.08 is: 9,336.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,711.99 : 28,046.73 = 6,229.08 : x
  2. Step 2: Convert to fraction form
    18,711.99/28,046.73 = 6,229.08/x
  3. Step 3: Cross multiply
    18,711.99x = 28,046.73 × 6,229.08
  4. Step 4: Simplify right side
    18,711.99x = 174,705,324.91
  5. Step 5: Solve for x
    x = 174,705,324.91/18,711.99
  6. Step 6: Final answer
    x = 9,336.54

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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.