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Finding the Fourth Proportional to 23,172.75, 34,764.12 and 9,321.75

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Solution

The fourth proportional to 23,172.75, 34,764.12 and 9,321.75 is: 13,984.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,172.75 : 34,764.12 = 9,321.75 : x
  2. Step 2: Convert to fraction form
    23,172.75/34,764.12 = 9,321.75/x
  3. Step 3: Cross multiply
    23,172.75x = 34,764.12 × 9,321.75
  4. Step 4: Simplify right side
    23,172.75x = 324,062,435.61
  5. Step 5: Solve for x
    x = 324,062,435.61/23,172.75
  6. Step 6: Final answer
    x = 13,984.63

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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.