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Finding the Fourth Proportional to 18,375.76, 27,563.81 and 5,895.81

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Solution

The fourth proportional to 18,375.76, 27,563.81 and 5,895.81 is: 8,843.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,375.76 : 27,563.81 = 5,895.81 : x
  2. Step 2: Convert to fraction form
    18,375.76/27,563.81 = 5,895.81/x
  3. Step 3: Cross multiply
    18,375.76x = 27,563.81 × 5,895.81
  4. Step 4: Simplify right side
    18,375.76x = 162,510,986.64
  5. Step 5: Solve for x
    x = 162,510,986.64/18,375.76
  6. Step 6: Final answer
    x = 8,843.77

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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.