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Finding the Fourth Proportional to 27,891.56, 41,837.36 and 7,115.06

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Solution

The fourth proportional to 27,891.56, 41,837.36 and 7,115.06 is: 10,672.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,891.56 : 41,837.36 = 7,115.06 : x
  2. Step 2: Convert to fraction form
    27,891.56/41,837.36 = 7,115.06/x
  3. Step 3: Cross multiply
    27,891.56x = 41,837.36 × 7,115.06
  4. Step 4: Simplify right side
    27,891.56x = 297,675,395.66
  5. Step 5: Solve for x
    x = 297,675,395.66/27,891.56
  6. Step 6: Final answer
    x = 10,672.60

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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.