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Finding the Fourth Proportional to 45,634.50, 68,451.75 and 14,469.75

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Solution

The fourth proportional to 45,634.50, 68,451.75 and 14,469.75 is: 21,704.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,634.50 : 68,451.75 = 14,469.75 : x
  2. Step 2: Convert to fraction form
    45,634.50/68,451.75 = 14,469.75/x
  3. Step 3: Cross multiply
    45,634.50x = 68,451.75 × 14,469.75
  4. Step 4: Simplify right side
    45,634.50x = 990,479,709.56
  5. Step 5: Solve for x
    x = 990,479,709.56/45,634.50
  6. Step 6: Final answer
    x = 21,704.63

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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.