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Finding the Fourth Proportional to 18,600.20, 27,886.92 and 8,733.99

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Solution

The fourth proportional to 18,600.20, 27,886.92 and 8,733.99 is: 13,094.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,600.20 : 27,886.92 = 8,733.99 : x
  2. Step 2: Convert to fraction form
    18,600.20/27,886.92 = 8,733.99/x
  3. Step 3: Cross multiply
    18,600.20x = 27,886.92 × 8,733.99
  4. Step 4: Simplify right side
    18,600.20x = 243,564,080.41
  5. Step 5: Solve for x
    x = 243,564,080.41/18,600.20
  6. Step 6: Final answer
    x = 13,094.71

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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.