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Finding the Fourth Proportional to 7,949.52, 11,915.52 and 3,016.08

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Solution

The fourth proportional to 7,949.52, 11,915.52 and 3,016.08 is: 4,520.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,949.52 : 11,915.52 = 3,016.08 : x
  2. Step 2: Convert to fraction form
    7,949.52/11,915.52 = 3,016.08/x
  3. Step 3: Cross multiply
    7,949.52x = 11,915.52 × 3,016.08
  4. Step 4: Simplify right side
    7,949.52x = 35,938,161.56
  5. Step 5: Solve for x
    x = 35,938,161.56/7,949.52
  6. Step 6: Final answer
    x = 4,520.80

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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.