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Finding the Fourth Proportional to 18,468.85, 27,684.11 and 8,600.01

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Solution

The fourth proportional to 18,468.85, 27,684.11 and 8,600.01 is: 12,891.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,468.85 : 27,684.11 = 8,600.01 : x
  2. Step 2: Convert to fraction form
    18,468.85/27,684.11 = 8,600.01/x
  3. Step 3: Cross multiply
    18,468.85x = 27,684.11 × 8,600.01
  4. Step 4: Simplify right side
    18,468.85x = 238,083,622.84
  5. Step 5: Solve for x
    x = 238,083,622.84/18,468.85
  6. Step 6: Final answer
    x = 12,891.09

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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.