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Finding the Fourth Proportional to 7,474.70, 11,213.40 and 3,092.60

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Solution

The fourth proportional to 7,474.70, 11,213.40 and 3,092.60 is: 4,639.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,474.70 : 11,213.40 = 3,092.60 : x
  2. Step 2: Convert to fraction form
    7,474.70/11,213.40 = 3,092.60/x
  3. Step 3: Cross multiply
    7,474.70x = 11,213.40 × 3,092.60
  4. Step 4: Simplify right side
    7,474.70x = 34,678,560.84
  5. Step 5: Solve for x
    x = 34,678,560.84/7,474.70
  6. Step 6: Final answer
    x = 4,639.46

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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.