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Finding the Fourth Proportional to 3,562.96, 5,344.42 and 965.90

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Solution

The fourth proportional to 3,562.96, 5,344.42 and 965.90 is: 1,448.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,562.96 : 5,344.42 = 965.90 : x
  2. Step 2: Convert to fraction form
    3,562.96/5,344.42 = 965.90/x
  3. Step 3: Cross multiply
    3,562.96x = 5,344.42 × 965.90
  4. Step 4: Simplify right side
    3,562.96x = 5,162,175.28
  5. Step 5: Solve for x
    x = 5,162,175.28/3,562.96
  6. Step 6: Final answer
    x = 1,448.84

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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.