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Finding the Fourth Proportional to 4,781.24, 7,171.79 and 1,494.30

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Solution

The fourth proportional to 4,781.24, 7,171.79 and 1,494.30 is: 2,241.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,781.24 : 7,171.79 = 1,494.30 : x
  2. Step 2: Convert to fraction form
    4,781.24/7,171.79 = 1,494.30/x
  3. Step 3: Cross multiply
    4,781.24x = 7,171.79 × 1,494.30
  4. Step 4: Simplify right side
    4,781.24x = 10,716,798.33
  5. Step 5: Solve for x
    x = 10,716,798.33/4,781.24
  6. Step 6: Final answer
    x = 2,241.43

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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.