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Finding the Fourth Proportional to 18,624.20, 27,953.86 and 6,789.41

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Solution

The fourth proportional to 18,624.20, 27,953.86 and 6,789.41 is: 10,190.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,624.20 : 27,953.86 = 6,789.41 : x
  2. Step 2: Convert to fraction form
    18,624.20/27,953.86 = 6,789.41/x
  3. Step 3: Cross multiply
    18,624.20x = 27,953.86 × 6,789.41
  4. Step 4: Simplify right side
    18,624.20x = 189,790,269.53
  5. Step 5: Solve for x
    x = 189,790,269.53/18,624.20
  6. Step 6: Final answer
    x = 10,190.52

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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.