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Finding the Fourth Proportional to 7,163.79, 10,749.86 and 3,003.48

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Solution

The fourth proportional to 7,163.79, 10,749.86 and 3,003.48 is: 4,506.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,163.79 : 10,749.86 = 3,003.48 : x
  2. Step 2: Convert to fraction form
    7,163.79/10,749.86 = 3,003.48/x
  3. Step 3: Cross multiply
    7,163.79x = 10,749.86 × 3,003.48
  4. Step 4: Simplify right side
    7,163.79x = 32,287,002.65
  5. Step 5: Solve for x
    x = 32,287,002.65/7,163.79
  6. Step 6: Final answer
    x = 4,506.97

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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.