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Finding the Fourth Proportional to 18,209.71, 27,311.38 and 5,063.11

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Solution

The fourth proportional to 18,209.71, 27,311.38 and 5,063.11 is: 7,593.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,209.71 : 27,311.38 = 5,063.11 : x
  2. Step 2: Convert to fraction form
    18,209.71/27,311.38 = 5,063.11/x
  3. Step 3: Cross multiply
    18,209.71x = 27,311.38 × 5,063.11
  4. Step 4: Simplify right side
    18,209.71x = 138,280,440.26
  5. Step 5: Solve for x
    x = 138,280,440.26/18,209.71
  6. Step 6: Final answer
    x = 7,593.77

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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.