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Finding the Fourth Proportional to 4,786.42, 7,179.66 and 1,499.26

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Solution

The fourth proportional to 4,786.42, 7,179.66 and 1,499.26 is: 2,248.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,786.42 : 7,179.66 = 1,499.26 : x
  2. Step 2: Convert to fraction form
    4,786.42/7,179.66 = 1,499.26/x
  3. Step 3: Cross multiply
    4,786.42x = 7,179.66 × 1,499.26
  4. Step 4: Simplify right side
    4,786.42x = 10,764,177.05
  5. Step 5: Solve for x
    x = 10,764,177.05/4,786.42
  6. Step 6: Final answer
    x = 2,248.90

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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.