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Finding the Fourth Proportional to 6,616.97, 9,930.32 and 3,326.75

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Solution

The fourth proportional to 6,616.97, 9,930.32 and 3,326.75 is: 4,992.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,616.97 : 9,930.32 = 3,326.75 : x
  2. Step 2: Convert to fraction form
    6,616.97/9,930.32 = 3,326.75/x
  3. Step 3: Cross multiply
    6,616.97x = 9,930.32 × 3,326.75
  4. Step 4: Simplify right side
    6,616.97x = 33,035,692.06
  5. Step 5: Solve for x
    x = 33,035,692.06/6,616.97
  6. Step 6: Final answer
    x = 4,992.57

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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.