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Finding the Fourth Proportional to 1,182.84, 1,770.60 and 1,082.04

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Solution

The fourth proportional to 1,182.84, 1,770.60 and 1,082.04 is: 1,619.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,182.84 : 1,770.60 = 1,082.04 : x
  2. Step 2: Convert to fraction form
    1,182.84/1,770.60 = 1,082.04/x
  3. Step 3: Cross multiply
    1,182.84x = 1,770.60 × 1,082.04
  4. Step 4: Simplify right side
    1,182.84x = 1,915,860.02
  5. Step 5: Solve for x
    x = 1,915,860.02/1,182.84
  6. Step 6: Final answer
    x = 1,619.71

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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.