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Finding the Fourth Proportional to 5,329.56, 7,991.19 and 3,576.54

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Solution

The fourth proportional to 5,329.56, 7,991.19 and 3,576.54 is: 5,362.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,329.56 : 7,991.19 = 3,576.54 : x
  2. Step 2: Convert to fraction form
    5,329.56/7,991.19 = 3,576.54/x
  3. Step 3: Cross multiply
    5,329.56x = 7,991.19 × 3,576.54
  4. Step 4: Simplify right side
    5,329.56x = 28,580,810.68
  5. Step 5: Solve for x
    x = 28,580,810.68/5,329.56
  6. Step 6: Final answer
    x = 5,362.70

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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.