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Finding the Fourth Proportional to 4,921.52, 6,791.46 and 2,797.00

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Solution

The fourth proportional to 4,921.52, 6,791.46 and 2,797.00 is: 3,859.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,921.52 : 6,791.46 = 2,797.00 : x
  2. Step 2: Convert to fraction form
    4,921.52/6,791.46 = 2,797.00/x
  3. Step 3: Cross multiply
    4,921.52x = 6,791.46 × 2,797.00
  4. Step 4: Simplify right side
    4,921.52x = 18,995,696.64
  5. Step 5: Solve for x
    x = 18,995,696.64/4,921.52
  6. Step 6: Final answer
    x = 3,859.73

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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.