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Finding the Fourth Proportional to 3,957.60, 5,936.40 and 1,035.96

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Solution

The fourth proportional to 3,957.60, 5,936.40 and 1,035.96 is: 1,553.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,957.60 : 5,936.40 = 1,035.96 : x
  2. Step 2: Convert to fraction form
    3,957.60/5,936.40 = 1,035.96/x
  3. Step 3: Cross multiply
    3,957.60x = 5,936.40 × 1,035.96
  4. Step 4: Simplify right side
    3,957.60x = 6,149,872.94
  5. Step 5: Solve for x
    x = 6,149,872.94/3,957.60
  6. Step 6: Final answer
    x = 1,553.94

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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.