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Finding the Fourth Proportional to 1,716.83, 2,573.14 and 791.10

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Solution

The fourth proportional to 1,716.83, 2,573.14 and 791.10 is: 1,185.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,716.83 : 2,573.14 = 791.10 : x
  2. Step 2: Convert to fraction form
    1,716.83/2,573.14 = 791.10/x
  3. Step 3: Cross multiply
    1,716.83x = 2,573.14 × 791.10
  4. Step 4: Simplify right side
    1,716.83x = 2,035,618.73
  5. Step 5: Solve for x
    x = 2,035,618.73/1,716.83
  6. Step 6: Final answer
    x = 1,185.68

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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.