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Finding the Fourth Proportional to 5,199.93, 7,175.92 and 2,961.90

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Solution

The fourth proportional to 5,199.93, 7,175.92 and 2,961.90 is: 4,087.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,199.93 : 7,175.92 = 2,961.90 : x
  2. Step 2: Convert to fraction form
    5,199.93/7,175.92 = 2,961.90/x
  3. Step 3: Cross multiply
    5,199.93x = 7,175.92 × 2,961.90
  4. Step 4: Simplify right side
    5,199.93x = 21,254,396.28
  5. Step 5: Solve for x
    x = 21,254,396.28/5,199.93
  6. Step 6: Final answer
    x = 4,087.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.