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Finding the Fourth Proportional to 7,213.80, 10,807.94 and 5,012.22

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Solution

The fourth proportional to 7,213.80, 10,807.94 and 5,012.22 is: 7,509.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,213.80 : 10,807.94 = 5,012.22 : x
  2. Step 2: Convert to fraction form
    7,213.80/10,807.94 = 5,012.22/x
  3. Step 3: Cross multiply
    7,213.80x = 10,807.94 × 5,012.22
  4. Step 4: Simplify right side
    7,213.80x = 54,171,785.56
  5. Step 5: Solve for x
    x = 54,171,785.56/7,213.80
  6. Step 6: Final answer
    x = 7,509.47

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.