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Finding the Fourth Proportional to 3,976.13, 5,964.20 and 1,667.63

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Solution

The fourth proportional to 3,976.13, 5,964.20 and 1,667.63 is: 2,501.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,976.13 : 5,964.20 = 1,667.63 : x
  2. Step 2: Convert to fraction form
    3,976.13/5,964.20 = 1,667.63/x
  3. Step 3: Cross multiply
    3,976.13x = 5,964.20 × 1,667.63
  4. Step 4: Simplify right side
    3,976.13x = 9,946,040.69
  5. Step 5: Solve for x
    x = 9,946,040.69/3,976.13
  6. Step 6: Final answer
    x = 2,501.44

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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.