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Finding the Fourth Proportional to 29,567.80, 44,243.70 and 21,791.80

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Solution

The fourth proportional to 29,567.80, 44,243.70 and 21,791.80 is: 32,608.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,567.80 : 44,243.70 = 21,791.80 : x
  2. Step 2: Convert to fraction form
    29,567.80/44,243.70 = 21,791.80/x
  3. Step 3: Cross multiply
    29,567.80x = 44,243.70 × 21,791.80
  4. Step 4: Simplify right side
    29,567.80x = 964,149,861.66
  5. Step 5: Solve for x
    x = 964,149,861.66/29,567.80
  6. Step 6: Final answer
    x = 32,608.10

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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.