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Finding the Fourth Proportional to 22,591.66, 33,918.54 and 11,505.82

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Solution

The fourth proportional to 22,591.66, 33,918.54 and 11,505.82 is: 17,274.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,591.66 : 33,918.54 = 11,505.82 : x
  2. Step 2: Convert to fraction form
    22,591.66/33,918.54 = 11,505.82/x
  3. Step 3: Cross multiply
    22,591.66x = 33,918.54 × 11,505.82
  4. Step 4: Simplify right side
    22,591.66x = 390,260,615.90
  5. Step 5: Solve for x
    x = 390,260,615.90/22,591.66
  6. Step 6: Final answer
    x = 17,274.54

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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.