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Finding the Fourth Proportional to 11,995.95, 17,993.93 and 6,441.65

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Solution

The fourth proportional to 11,995.95, 17,993.93 and 6,441.65 is: 9,662.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,995.95 : 17,993.93 = 6,441.65 : x
  2. Step 2: Convert to fraction form
    11,995.95/17,993.93 = 6,441.65/x
  3. Step 3: Cross multiply
    11,995.95x = 17,993.93 × 6,441.65
  4. Step 4: Simplify right side
    11,995.95x = 115,910,664.48
  5. Step 5: Solve for x
    x = 115,910,664.48/11,995.95
  6. Step 6: Final answer
    x = 9,662.48

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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.