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Finding the Fourth Proportional to 7,608.80, 11,414 and 2,343.60

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Solution

The fourth proportional to 7,608.80, 11,414 and 2,343.60 is: 3,515.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,608.80 : 11,414 = 2,343.60 : x
  2. Step 2: Convert to fraction form
    7,608.80/11,414 = 2,343.60/x
  3. Step 3: Cross multiply
    7,608.80x = 11,414 × 2,343.60
  4. Step 4: Simplify right side
    7,608.80x = 26,749,850.40
  5. Step 5: Solve for x
    x = 26,749,850.40/7,608.80
  6. Step 6: Final answer
    x = 3,515.65

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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.