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Finding the Fourth Proportional to 5,991.09, 8,990.72 and 3,071.45

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Solution

The fourth proportional to 5,991.09, 8,990.72 and 3,071.45 is: 4,609.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,991.09 : 8,990.72 = 3,071.45 : x
  2. Step 2: Convert to fraction form
    5,991.09/8,990.72 = 3,071.45/x
  3. Step 3: Cross multiply
    5,991.09x = 8,990.72 × 3,071.45
  4. Step 4: Simplify right side
    5,991.09x = 27,614,546.94
  5. Step 5: Solve for x
    x = 27,614,546.94/5,991.09
  6. Step 6: Final answer
    x = 4,609.27

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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.