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Finding the Fourth Proportional to 11,291.92, 16,943.66 and 5,375.50

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Solution

The fourth proportional to 11,291.92, 16,943.66 and 5,375.50 is: 8,066.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,291.92 : 16,943.66 = 5,375.50 : x
  2. Step 2: Convert to fraction form
    11,291.92/16,943.66 = 5,375.50/x
  3. Step 3: Cross multiply
    11,291.92x = 16,943.66 × 5,375.50
  4. Step 4: Simplify right side
    11,291.92x = 91,080,644.33
  5. Step 5: Solve for x
    x = 91,080,644.33/11,291.92
  6. Step 6: Final answer
    x = 8,066.00

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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.