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Finding the Fourth Proportional to 3,999.66, 5,964.24 and 3,722.64

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Solution

The fourth proportional to 3,999.66, 5,964.24 and 3,722.64 is: 5,551.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,999.66 : 5,964.24 = 3,722.64 : x
  2. Step 2: Convert to fraction form
    3,999.66/5,964.24 = 3,722.64/x
  3. Step 3: Cross multiply
    3,999.66x = 5,964.24 × 3,722.64
  4. Step 4: Simplify right side
    3,999.66x = 22,202,718.39
  5. Step 5: Solve for x
    x = 22,202,718.39/3,999.66
  6. Step 6: Final answer
    x = 5,551.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.