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Finding the Fourth Proportional to 3,941.79, 5,913.94 and 1,168.48

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Solution

The fourth proportional to 3,941.79, 5,913.94 and 1,168.48 is: 1,753.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,941.79 : 5,913.94 = 1,168.48 : x
  2. Step 2: Convert to fraction form
    3,941.79/5,913.94 = 1,168.48/x
  3. Step 3: Cross multiply
    3,941.79x = 5,913.94 × 1,168.48
  4. Step 4: Simplify right side
    3,941.79x = 6,910,302.91
  5. Step 5: Solve for x
    x = 6,910,302.91/3,941.79
  6. Step 6: Final answer
    x = 1,753.09

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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.