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Finding the Fourth Proportional to 27,891.21, 41,841.96 and 9,172.29

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Solution

The fourth proportional to 27,891.21, 41,841.96 and 9,172.29 is: 13,760.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,891.21 : 41,841.96 = 9,172.29 : x
  2. Step 2: Convert to fraction form
    27,891.21/41,841.96 = 9,172.29/x
  3. Step 3: Cross multiply
    27,891.21x = 41,841.96 × 9,172.29
  4. Step 4: Simplify right side
    27,891.21x = 383,786,591.29
  5. Step 5: Solve for x
    x = 383,786,591.29/27,891.21
  6. Step 6: Final answer
    x = 13,760.13

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1.5x scale

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.