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Finding the Fourth Proportional to 11,995.56, 18,004.86 and 5,843.88

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Solution

The fourth proportional to 11,995.56, 18,004.86 and 5,843.88 is: 8,771.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,995.56 : 18,004.86 = 5,843.88 : x
  2. Step 2: Convert to fraction form
    11,995.56/18,004.86 = 5,843.88/x
  3. Step 3: Cross multiply
    11,995.56x = 18,004.86 × 5,843.88
  4. Step 4: Simplify right side
    11,995.56x = 105,218,241.26
  5. Step 5: Solve for x
    x = 105,218,241.26/11,995.56
  6. Step 6: Final answer
    x = 8,771.43

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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.