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Finding the Fourth Proportional to 14,362.75, 21,544.13 and 3,974.50

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Solution

The fourth proportional to 14,362.75, 21,544.13 and 3,974.50 is: 5,961.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,362.75 : 21,544.13 = 3,974.50 : x
  2. Step 2: Convert to fraction form
    14,362.75/21,544.13 = 3,974.50/x
  3. Step 3: Cross multiply
    14,362.75x = 21,544.13 × 3,974.50
  4. Step 4: Simplify right side
    14,362.75x = 85,627,144.69
  5. Step 5: Solve for x
    x = 85,627,144.69/14,362.75
  6. Step 6: Final answer
    x = 5,961.75

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Similar ratio
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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.