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Finding the Fourth Proportional to 7,344.88, 11,021.52 and 7,285.48

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Solution

The fourth proportional to 7,344.88, 11,021.52 and 7,285.48 is: 10,932.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,344.88 : 11,021.52 = 7,285.48 : x
  2. Step 2: Convert to fraction form
    7,344.88/11,021.52 = 7,285.48/x
  3. Step 3: Cross multiply
    7,344.88x = 11,021.52 × 7,285.48
  4. Step 4: Simplify right side
    7,344.88x = 80,297,063.53
  5. Step 5: Solve for x
    x = 80,297,063.53/7,344.88
  6. Step 6: Final answer
    x = 10,932.39

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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.