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Finding the Fourth Proportional to 7,995.91, 11,990.22 and 3,837.88

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Solution

The fourth proportional to 7,995.91, 11,990.22 and 3,837.88 is: 5,755.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,995.91 : 11,990.22 = 3,837.88 : x
  2. Step 2: Convert to fraction form
    7,995.91/11,990.22 = 3,837.88/x
  3. Step 3: Cross multiply
    7,995.91x = 11,990.22 × 3,837.88
  4. Step 4: Simplify right side
    7,995.91x = 46,017,025.53
  5. Step 5: Solve for x
    x = 46,017,025.53/7,995.91
  6. Step 6: Final answer
    x = 5,755.07

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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.