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Finding the Fourth Proportional to 18,558.54, 27,838.98 and 6,079.86

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Solution

The fourth proportional to 18,558.54, 27,838.98 and 6,079.86 is: 9,120.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,558.54 : 27,838.98 = 6,079.86 : x
  2. Step 2: Convert to fraction form
    18,558.54/27,838.98 = 6,079.86/x
  3. Step 3: Cross multiply
    18,558.54x = 27,838.98 × 6,079.86
  4. Step 4: Simplify right side
    18,558.54x = 169,257,100.94
  5. Step 5: Solve for x
    x = 169,257,100.94/18,558.54
  6. Step 6: Final answer
    x = 9,120.17

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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.