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Finding the Fourth Proportional to 18,650.92, 27,976.11 and 4,611.10

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Solution

The fourth proportional to 18,650.92, 27,976.11 and 4,611.10 is: 6,916.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,650.92 : 27,976.11 = 4,611.10 : x
  2. Step 2: Convert to fraction form
    18,650.92/27,976.11 = 4,611.10/x
  3. Step 3: Cross multiply
    18,650.92x = 27,976.11 × 4,611.10
  4. Step 4: Simplify right side
    18,650.92x = 129,000,640.82
  5. Step 5: Solve for x
    x = 129,000,640.82/18,650.92
  6. Step 6: Final answer
    x = 6,916.58

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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.