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Finding the Fourth Proportional to 7,660.93, 11,486.79 and 3,443.44

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Solution

The fourth proportional to 7,660.93, 11,486.79 and 3,443.44 is: 5,163.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,660.93 : 11,486.79 = 3,443.44 : x
  2. Step 2: Convert to fraction form
    7,660.93/11,486.79 = 3,443.44/x
  3. Step 3: Cross multiply
    7,660.93x = 11,486.79 × 3,443.44
  4. Step 4: Simplify right side
    7,660.93x = 39,554,072.16
  5. Step 5: Solve for x
    x = 39,554,072.16/7,660.93
  6. Step 6: Final answer
    x = 5,163.09

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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.