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Finding the Fourth Proportional to 11,207.88, 16,801.78 and 4,629.87

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Solution

The fourth proportional to 11,207.88, 16,801.78 and 4,629.87 is: 6,940.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,207.88 : 16,801.78 = 4,629.87 : x
  2. Step 2: Convert to fraction form
    11,207.88/16,801.78 = 4,629.87/x
  3. Step 3: Cross multiply
    11,207.88x = 16,801.78 × 4,629.87
  4. Step 4: Simplify right side
    11,207.88x = 77,790,057.17
  5. Step 5: Solve for x
    x = 77,790,057.17/11,207.88
  6. Step 6: Final answer
    x = 6,940.66

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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.