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Finding the Fourth Proportional to 2,986.70, 4,480.25 and 2,336.27

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Solution

The fourth proportional to 2,986.70, 4,480.25 and 2,336.27 is: 3,504.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,986.70 : 4,480.25 = 2,336.27 : x
  2. Step 2: Convert to fraction form
    2,986.70/4,480.25 = 2,336.27/x
  3. Step 3: Cross multiply
    2,986.70x = 4,480.25 × 2,336.27
  4. Step 4: Simplify right side
    2,986.70x = 10,467,039.58
  5. Step 5: Solve for x
    x = 10,467,039.58/2,986.70
  6. Step 6: Final answer
    x = 3,504.56

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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.