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Finding the Fourth Proportional to 4,921.77, 7,380.24 and 1,633.77

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Solution

The fourth proportional to 4,921.77, 7,380.24 and 1,633.77 is: 2,449.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,921.77 : 7,380.24 = 1,633.77 : x
  2. Step 2: Convert to fraction form
    4,921.77/7,380.24 = 1,633.77/x
  3. Step 3: Cross multiply
    4,921.77x = 7,380.24 × 1,633.77
  4. Step 4: Simplify right side
    4,921.77x = 12,057,614.70
  5. Step 5: Solve for x
    x = 12,057,614.70/4,921.77
  6. Step 6: Final answer
    x = 2,449.85

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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.