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Finding the Fourth Proportional to 6,745.84, 9,305.25 and 5,251.39

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Solution

The fourth proportional to 6,745.84, 9,305.25 and 5,251.39 is: 7,243.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,745.84 : 9,305.25 = 5,251.39 : x
  2. Step 2: Convert to fraction form
    6,745.84/9,305.25 = 5,251.39/x
  3. Step 3: Cross multiply
    6,745.84x = 9,305.25 × 5,251.39
  4. Step 4: Simplify right side
    6,745.84x = 48,865,453.84
  5. Step 5: Solve for x
    x = 48,865,453.84/6,745.84
  6. Step 6: Final answer
    x = 7,243.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.