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Finding the Fourth Proportional to 6,516.56, 8,992.14 and 3,721.52

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Solution

The fourth proportional to 6,516.56, 8,992.14 and 3,721.52 is: 5,135.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,516.56 : 8,992.14 = 3,721.52 : x
  2. Step 2: Convert to fraction form
    6,516.56/8,992.14 = 3,721.52/x
  3. Step 3: Cross multiply
    6,516.56x = 8,992.14 × 3,721.52
  4. Step 4: Simplify right side
    6,516.56x = 33,464,428.85
  5. Step 5: Solve for x
    x = 33,464,428.85/6,516.56
  6. Step 6: Final answer
    x = 5,135.29

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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.