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Finding the Fourth Proportional to 17,911.44, 26,867.70 and 8,552.45

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Solution

The fourth proportional to 17,911.44, 26,867.70 and 8,552.45 is: 12,828.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,911.44 : 26,867.70 = 8,552.45 : x
  2. Step 2: Convert to fraction form
    17,911.44/26,867.70 = 8,552.45/x
  3. Step 3: Cross multiply
    17,911.44x = 26,867.70 × 8,552.45
  4. Step 4: Simplify right side
    17,911.44x = 229,784,660.87
  5. Step 5: Solve for x
    x = 229,784,660.87/17,911.44
  6. Step 6: Final answer
    x = 12,828.93

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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.