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Finding the Fourth Proportional to 18,571.88, 27,857.46 and 4,532

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Solution

The fourth proportional to 18,571.88, 27,857.46 and 4,532 is: 6,797.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,571.88 : 27,857.46 = 4,532 : x
  2. Step 2: Convert to fraction form
    18,571.88/27,857.46 = 4,532/x
  3. Step 3: Cross multiply
    18,571.88x = 27,857.46 × 4,532
  4. Step 4: Simplify right side
    18,571.88x = 126,250,008.72
  5. Step 5: Solve for x
    x = 126,250,008.72/18,571.88
  6. Step 6: Final answer
    x = 6,797.91

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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.