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Finding the Fourth Proportional to 11,343.80, 17,009.02 and 3,443.93

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Solution

The fourth proportional to 11,343.80, 17,009.02 and 3,443.93 is: 5,163.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,343.80 : 17,009.02 = 3,443.93 : x
  2. Step 2: Convert to fraction form
    11,343.80/17,009.02 = 3,443.93/x
  3. Step 3: Cross multiply
    11,343.80x = 17,009.02 × 3,443.93
  4. Step 4: Simplify right side
    11,343.80x = 58,577,874.25
  5. Step 5: Solve for x
    x = 58,577,874.25/11,343.80
  6. Step 6: Final answer
    x = 5,163.87

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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.