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Finding the Fourth Proportional to 27,682.88, 41,530.96 and 7,961.04

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Solution

The fourth proportional to 27,682.88, 41,530.96 and 7,961.04 is: 11,943.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,682.88 : 41,530.96 = 7,961.04 : x
  2. Step 2: Convert to fraction form
    27,682.88/41,530.96 = 7,961.04/x
  3. Step 3: Cross multiply
    27,682.88x = 41,530.96 × 7,961.04
  4. Step 4: Simplify right side
    27,682.88x = 330,629,633.80
  5. Step 5: Solve for x
    x = 330,629,633.80/27,682.88
  6. Step 6: Final answer
    x = 11,943.47

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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.