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Finding the Fourth Proportional to 1,791.82, 2,472.03 and 1,320.84

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Solution

The fourth proportional to 1,791.82, 2,472.03 and 1,320.84 is: 1,822.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,791.82 : 2,472.03 = 1,320.84 : x
  2. Step 2: Convert to fraction form
    1,791.82/2,472.03 = 1,320.84/x
  3. Step 3: Cross multiply
    1,791.82x = 2,472.03 × 1,320.84
  4. Step 4: Simplify right side
    1,791.82x = 3,265,152.75
  5. Step 5: Solve for x
    x = 3,265,152.75/1,791.82
  6. Step 6: Final answer
    x = 1,822.25

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