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Finding the Fourth Proportional to 4,887.54, 7,324.43 and 3,786.75

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Solution

The fourth proportional to 4,887.54, 7,324.43 and 3,786.75 is: 5,674.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,887.54 : 7,324.43 = 3,786.75 : x
  2. Step 2: Convert to fraction form
    4,887.54/7,324.43 = 3,786.75/x
  3. Step 3: Cross multiply
    4,887.54x = 7,324.43 × 3,786.75
  4. Step 4: Simplify right side
    4,887.54x = 27,735,766.37
  5. Step 5: Solve for x
    x = 27,735,766.37/4,887.54
  6. Step 6: Final answer
    x = 5,674.79

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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.