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Finding the Fourth Proportional to 27,898.29, 41,839.29 and 8,172.18

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Solution

The fourth proportional to 27,898.29, 41,839.29 and 8,172.18 is: 12,255.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,898.29 : 41,839.29 = 8,172.18 : x
  2. Step 2: Convert to fraction form
    27,898.29/41,839.29 = 8,172.18/x
  3. Step 3: Cross multiply
    27,898.29x = 41,839.29 × 8,172.18
  4. Step 4: Simplify right side
    27,898.29x = 341,918,208.95
  5. Step 5: Solve for x
    x = 341,918,208.95/27,898.29
  6. Step 6: Final answer
    x = 12,255.88

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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.