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Finding the Fourth Proportional to 11,881.66, 17,824.02 and 5,552.12

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Solution

The fourth proportional to 11,881.66, 17,824.02 and 5,552.12 is: 8,328.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,881.66 : 17,824.02 = 5,552.12 : x
  2. Step 2: Convert to fraction form
    11,881.66/17,824.02 = 5,552.12/x
  3. Step 3: Cross multiply
    11,881.66x = 17,824.02 × 5,552.12
  4. Step 4: Simplify right side
    11,881.66x = 98,961,097.92
  5. Step 5: Solve for x
    x = 98,961,097.92/11,881.66
  6. Step 6: Final answer
    x = 8,328.89

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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.