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Finding the Fourth Proportional to 17,812.44, 26,724.80 and 7,958.52

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Solution

The fourth proportional to 17,812.44, 26,724.80 and 7,958.52 is: 11,940.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,812.44 : 26,724.80 = 7,958.52 : x
  2. Step 2: Convert to fraction form
    17,812.44/26,724.80 = 7,958.52/x
  3. Step 3: Cross multiply
    17,812.44x = 26,724.80 × 7,958.52
  4. Step 4: Simplify right side
    17,812.44x = 212,689,855.30
  5. Step 5: Solve for x
    x = 212,689,855.30/17,812.44
  6. Step 6: Final answer
    x = 11,940.52

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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.