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Finding the Fourth Proportional to 18,625.94, 27,936.16 and 7,532.38

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Solution

The fourth proportional to 18,625.94, 27,936.16 and 7,532.38 is: 11,297.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,625.94 : 27,936.16 = 7,532.38 : x
  2. Step 2: Convert to fraction form
    18,625.94/27,936.16 = 7,532.38/x
  3. Step 3: Cross multiply
    18,625.94x = 27,936.16 × 7,532.38
  4. Step 4: Simplify right side
    18,625.94x = 210,425,772.86
  5. Step 5: Solve for x
    x = 210,425,772.86/18,625.94
  6. Step 6: Final answer
    x = 11,297.46

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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.