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Finding the Fourth Proportional to 11,581.08, 17,222.63 and 11,212.02

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Solution

The fourth proportional to 11,581.08, 17,222.63 and 11,212.02 is: 16,673.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,581.08 : 17,222.63 = 11,212.02 : x
  2. Step 2: Convert to fraction form
    11,581.08/17,222.63 = 11,212.02/x
  3. Step 3: Cross multiply
    11,581.08x = 17,222.63 × 11,212.02
  4. Step 4: Simplify right side
    11,581.08x = 193,100,415.95
  5. Step 5: Solve for x
    x = 193,100,415.95/11,581.08
  6. Step 6: Final answer
    x = 16,673.79

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.