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Finding the Fourth Proportional to 42,633.92, 63,941.92 and 11,469.44

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Solution

The fourth proportional to 42,633.92, 63,941.92 and 11,469.44 is: 17,201.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,633.92 : 63,941.92 = 11,469.44 : x
  2. Step 2: Convert to fraction form
    42,633.92/63,941.92 = 11,469.44/x
  3. Step 3: Cross multiply
    42,633.92x = 63,941.92 × 11,469.44
  4. Step 4: Simplify right side
    42,633.92x = 733,378,014.92
  5. Step 5: Solve for x
    x = 733,378,014.92/42,633.92
  6. Step 6: Final answer
    x = 17,201.75

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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.