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Finding the Fourth Proportional to 49,144.66, 73,745.54 and 20,679.52

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Solution

The fourth proportional to 49,144.66, 73,745.54 and 20,679.52 is: 31,031.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,144.66 : 73,745.54 = 20,679.52 : x
  2. Step 2: Convert to fraction form
    49,144.66/73,745.54 = 20,679.52/x
  3. Step 3: Cross multiply
    49,144.66x = 73,745.54 × 20,679.52
  4. Step 4: Simplify right side
    49,144.66x = 1,525,022,369.34
  5. Step 5: Solve for x
    x = 1,525,022,369.34/49,144.66
  6. Step 6: Final answer
    x = 31,031.29

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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.