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Finding the Fourth Proportional to 3,991.73, 6,007.50 and 3,009.60

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Solution

The fourth proportional to 3,991.73, 6,007.50 and 3,009.60 is: 4,529.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,991.73 : 6,007.50 = 3,009.60 : x
  2. Step 2: Convert to fraction form
    3,991.73/6,007.50 = 3,009.60/x
  3. Step 3: Cross multiply
    3,991.73x = 6,007.50 × 3,009.60
  4. Step 4: Simplify right side
    3,991.73x = 18,080,172
  5. Step 5: Solve for x
    x = 18,080,172/3,991.73
  6. Step 6: Final answer
    x = 4,529.41

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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.