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Finding the Fourth Proportional to 39,843.88, 59,791.74 and 17,671.72

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Solution

The fourth proportional to 39,843.88, 59,791.74 and 17,671.72 is: 26,519.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,843.88 : 59,791.74 = 17,671.72 : x
  2. Step 2: Convert to fraction form
    39,843.88/59,791.74 = 17,671.72/x
  3. Step 3: Cross multiply
    39,843.88x = 59,791.74 × 17,671.72
  4. Step 4: Simplify right side
    39,843.88x = 1,056,622,887.59
  5. Step 5: Solve for x
    x = 1,056,622,887.59/39,843.88
  6. Step 6: Final answer
    x = 26,519.08

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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.