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Finding the Fourth Proportional to 18,625.26, 27,937.64 and 7,531.86

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Solution

The fourth proportional to 18,625.26, 27,937.64 and 7,531.86 is: 11,297.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,625.26 : 27,937.64 = 7,531.86 : x
  2. Step 2: Convert to fraction form
    18,625.26/27,937.64 = 7,531.86/x
  3. Step 3: Cross multiply
    18,625.26x = 27,937.64 × 7,531.86
  4. Step 4: Simplify right side
    18,625.26x = 210,422,393.21
  5. Step 5: Solve for x
    x = 210,422,393.21/18,625.26
  6. Step 6: Final answer
    x = 11,297.69

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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.