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Finding the Fourth Proportional to 18,107.08, 27,156.93 and 4,958.44

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Solution

The fourth proportional to 18,107.08, 27,156.93 and 4,958.44 is: 7,436.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,107.08 : 27,156.93 = 4,958.44 : x
  2. Step 2: Convert to fraction form
    18,107.08/27,156.93 = 4,958.44/x
  3. Step 3: Cross multiply
    18,107.08x = 27,156.93 × 4,958.44
  4. Step 4: Simplify right side
    18,107.08x = 134,656,007.99
  5. Step 5: Solve for x
    x = 134,656,007.99/18,107.08
  6. Step 6: Final answer
    x = 7,436.65

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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.