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Finding the Fourth Proportional to 18,110.86, 27,163.04 and 4,962.12

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Solution

The fourth proportional to 18,110.86, 27,163.04 and 4,962.12 is: 7,442.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,110.86 : 27,163.04 = 4,962.12 : x
  2. Step 2: Convert to fraction form
    18,110.86/27,163.04 = 4,962.12/x
  3. Step 3: Cross multiply
    18,110.86x = 27,163.04 × 4,962.12
  4. Step 4: Simplify right side
    18,110.86x = 134,786,264.04
  5. Step 5: Solve for x
    x = 134,786,264.04/18,110.86
  6. Step 6: Final answer
    x = 7,442.29

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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.