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Finding the Fourth Proportional to 14,608.20, 21,904.20 and 6,286.80

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Solution

The fourth proportional to 14,608.20, 21,904.20 and 6,286.80 is: 9,426.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,608.20 : 21,904.20 = 6,286.80 : x
  2. Step 2: Convert to fraction form
    14,608.20/21,904.20 = 6,286.80/x
  3. Step 3: Cross multiply
    14,608.20x = 21,904.20 × 6,286.80
  4. Step 4: Simplify right side
    14,608.20x = 137,707,324.56
  5. Step 5: Solve for x
    x = 137,707,324.56/14,608.20
  6. Step 6: Final answer
    x = 9,426.71

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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.