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Finding the Fourth Proportional to 3,992.94, 5,507.73 and 3,338.46

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Solution

The fourth proportional to 3,992.94, 5,507.73 and 3,338.46 is: 4,604.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,992.94 : 5,507.73 = 3,338.46 : x
  2. Step 2: Convert to fraction form
    3,992.94/5,507.73 = 3,338.46/x
  3. Step 3: Cross multiply
    3,992.94x = 5,507.73 × 3,338.46
  4. Step 4: Simplify right side
    3,992.94x = 18,387,336.30
  5. Step 5: Solve for x
    x = 18,387,336.30/3,992.94
  6. Step 6: Final answer
    x = 4,604.96

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1.5x scale

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.