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Finding the Fourth Proportional to 27,640.50, 41,467.23 and 9,172.50

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Solution

The fourth proportional to 27,640.50, 41,467.23 and 9,172.50 is: 13,760.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,640.50 : 41,467.23 = 9,172.50 : x
  2. Step 2: Convert to fraction form
    27,640.50/41,467.23 = 9,172.50/x
  3. Step 3: Cross multiply
    27,640.50x = 41,467.23 × 9,172.50
  4. Step 4: Simplify right side
    27,640.50x = 380,358,167.18
  5. Step 5: Solve for x
    x = 380,358,167.18/27,640.50
  6. Step 6: Final answer
    x = 13,760.90

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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.