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Finding the Fourth Proportional to 25,523.92, 38,285.88 and 7,993.84

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Solution

The fourth proportional to 25,523.92, 38,285.88 and 7,993.84 is: 11,990.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,523.92 : 38,285.88 = 7,993.84 : x
  2. Step 2: Convert to fraction form
    25,523.92/38,285.88 = 7,993.84/x
  3. Step 3: Cross multiply
    25,523.92x = 38,285.88 × 7,993.84
  4. Step 4: Simplify right side
    25,523.92x = 306,051,198.98
  5. Step 5: Solve for x
    x = 306,051,198.98/25,523.92
  6. Step 6: Final answer
    x = 11,990.76

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Double scale
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Similar ratio
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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.