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Finding the Fourth Proportional to 17,891.52, 26,823.17 and 11,303.82

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Solution

The fourth proportional to 17,891.52, 26,823.17 and 11,303.82 is: 16,946.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,891.52 : 26,823.17 = 11,303.82 : x
  2. Step 2: Convert to fraction form
    17,891.52/26,823.17 = 11,303.82/x
  3. Step 3: Cross multiply
    17,891.52x = 26,823.17 × 11,303.82
  4. Step 4: Simplify right side
    17,891.52x = 303,204,228.99
  5. Step 5: Solve for x
    x = 303,204,228.99/17,891.52
  6. Step 6: Final answer
    x = 16,946.81

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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.