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Finding the Fourth Proportional to 6,148.17, 8,481.78 and 4,158

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Solution

The fourth proportional to 6,148.17, 8,481.78 and 4,158 is: 5,736.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,148.17 : 8,481.78 = 4,158 : x
  2. Step 2: Convert to fraction form
    6,148.17/8,481.78 = 4,158/x
  3. Step 3: Cross multiply
    6,148.17x = 8,481.78 × 4,158
  4. Step 4: Simplify right side
    6,148.17x = 35,267,241.24
  5. Step 5: Solve for x
    x = 35,267,241.24/6,148.17
  6. Step 6: Final answer
    x = 5,736.22

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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.