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Finding the Fourth Proportional to 2,964.66, 4,091.31 and 1,620.33

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Solution

The fourth proportional to 2,964.66, 4,091.31 and 1,620.33 is: 2,236.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,964.66 : 4,091.31 = 1,620.33 : x
  2. Step 2: Convert to fraction form
    2,964.66/4,091.31 = 1,620.33/x
  3. Step 3: Cross multiply
    2,964.66x = 4,091.31 × 1,620.33
  4. Step 4: Simplify right side
    2,964.66x = 6,629,272.33
  5. Step 5: Solve for x
    x = 6,629,272.33/2,964.66
  6. Step 6: Final answer
    x = 2,236.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.