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Finding the Fourth Proportional to 67,729.50, 101,594.25 and 18,481.50

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Solution

The fourth proportional to 67,729.50, 101,594.25 and 18,481.50 is: 27,722.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,729.50 : 101,594.25 = 18,481.50 : x
  2. Step 2: Convert to fraction form
    67,729.50/101,594.25 = 18,481.50/x
  3. Step 3: Cross multiply
    67,729.50x = 101,594.25 × 18,481.50
  4. Step 4: Simplify right side
    67,729.50x = 1,877,614,131.38
  5. Step 5: Solve for x
    x = 1,877,614,131.38/67,729.50
  6. Step 6: Final answer
    x = 27,722.25

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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.