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Finding the Fourth Proportional to 62,751.44, 94,124.28 and 21,198.80

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Solution

The fourth proportional to 62,751.44, 94,124.28 and 21,198.80 is: 31,797.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,751.44 : 94,124.28 = 21,198.80 : x
  2. Step 2: Convert to fraction form
    62,751.44/94,124.28 = 21,198.80/x
  3. Step 3: Cross multiply
    62,751.44x = 94,124.28 × 21,198.80
  4. Step 4: Simplify right side
    62,751.44x = 1,995,321,786.86
  5. Step 5: Solve for x
    x = 1,995,321,786.86/62,751.44
  6. Step 6: Final answer
    x = 31,797.23

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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.