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Finding the Fourth Proportional to 14,755.53, 20,361.87 and 8,467.50

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Solution

The fourth proportional to 14,755.53, 20,361.87 and 8,467.50 is: 11,684.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,755.53 : 20,361.87 = 8,467.50 : x
  2. Step 2: Convert to fraction form
    14,755.53/20,361.87 = 8,467.50/x
  3. Step 3: Cross multiply
    14,755.53x = 20,361.87 × 8,467.50
  4. Step 4: Simplify right side
    14,755.53x = 172,414,134.23
  5. Step 5: Solve for x
    x = 172,414,134.23/14,755.53
  6. Step 6: Final answer
    x = 11,684.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.