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Finding the Fourth Proportional to 3,770.94, 5,619.60 and 3,658.26

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Solution

The fourth proportional to 3,770.94, 5,619.60 and 3,658.26 is: 5,451.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,770.94 : 5,619.60 = 3,658.26 : x
  2. Step 2: Convert to fraction form
    3,770.94/5,619.60 = 3,658.26/x
  3. Step 3: Cross multiply
    3,770.94x = 5,619.60 × 3,658.26
  4. Step 4: Simplify right side
    3,770.94x = 20,557,957.90
  5. Step 5: Solve for x
    x = 20,557,957.90/3,770.94
  6. Step 6: Final answer
    x = 5,451.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.