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Finding the Fourth Proportional to 7,489.98, 11,232.21 and 2,491.44

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Solution

The fourth proportional to 7,489.98, 11,232.21 and 2,491.44 is: 3,736.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,489.98 : 11,232.21 = 2,491.44 : x
  2. Step 2: Convert to fraction form
    7,489.98/11,232.21 = 2,491.44/x
  3. Step 3: Cross multiply
    7,489.98x = 11,232.21 × 2,491.44
  4. Step 4: Simplify right side
    7,489.98x = 27,984,377.28
  5. Step 5: Solve for x
    x = 27,984,377.28/7,489.98
  6. Step 6: Final answer
    x = 3,736.24

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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.