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Finding the Fourth Proportional to 8,231.62, 11,359.65 and 4,505.62

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Solution

The fourth proportional to 8,231.62, 11,359.65 and 4,505.62 is: 6,217.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,231.62 : 11,359.65 = 4,505.62 : x
  2. Step 2: Convert to fraction form
    8,231.62/11,359.65 = 4,505.62/x
  3. Step 3: Cross multiply
    8,231.62x = 11,359.65 × 4,505.62
  4. Step 4: Simplify right side
    8,231.62x = 51,182,266.23
  5. Step 5: Solve for x
    x = 51,182,266.23/8,231.62
  6. Step 6: Final answer
    x = 6,217.76

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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.