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Finding the Fourth Proportional to 5,197.82, 7,796.49 and 1,910.68

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Solution

The fourth proportional to 5,197.82, 7,796.49 and 1,910.68 is: 2,865.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,197.82 : 7,796.49 = 1,910.68 : x
  2. Step 2: Convert to fraction form
    5,197.82/7,796.49 = 1,910.68/x
  3. Step 3: Cross multiply
    5,197.82x = 7,796.49 × 1,910.68
  4. Step 4: Simplify right side
    5,197.82x = 14,896,597.51
  5. Step 5: Solve for x
    x = 14,896,597.51/5,197.82
  6. Step 6: Final answer
    x = 2,865.93

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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.