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Finding the Fourth Proportional to 17,127.85, 25,691.41 and 7,893.85

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Solution

The fourth proportional to 17,127.85, 25,691.41 and 7,893.85 is: 11,840.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,127.85 : 25,691.41 = 7,893.85 : x
  2. Step 2: Convert to fraction form
    17,127.85/25,691.41 = 7,893.85/x
  3. Step 3: Cross multiply
    17,127.85x = 25,691.41 × 7,893.85
  4. Step 4: Simplify right side
    17,127.85x = 202,804,136.83
  5. Step 5: Solve for x
    x = 202,804,136.83/17,127.85
  6. Step 6: Final answer
    x = 11,840.61

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1.5x scale

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.