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Finding the Fourth Proportional to 5,168.44, 7,121.37 and 4,743.79

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Solution

The fourth proportional to 5,168.44, 7,121.37 and 4,743.79 is: 6,536.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,168.44 : 7,121.37 = 4,743.79 : x
  2. Step 2: Convert to fraction form
    5,168.44/7,121.37 = 4,743.79/x
  3. Step 3: Cross multiply
    5,168.44x = 7,121.37 × 4,743.79
  4. Step 4: Simplify right side
    5,168.44x = 33,782,283.79
  5. Step 5: Solve for x
    x = 33,782,283.79/5,168.44
  6. Step 6: Final answer
    x = 6,536.26

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.