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Finding the Fourth Proportional to 9,171.96, 13,757.12 and 3,328.62

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Solution

The fourth proportional to 9,171.96, 13,757.12 and 3,328.62 is: 4,992.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,171.96 : 13,757.12 = 3,328.62 : x
  2. Step 2: Convert to fraction form
    9,171.96/13,757.12 = 3,328.62/x
  3. Step 3: Cross multiply
    9,171.96x = 13,757.12 × 3,328.62
  4. Step 4: Simplify right side
    9,171.96x = 45,792,224.77
  5. Step 5: Solve for x
    x = 45,792,224.77/9,171.96
  6. Step 6: Final answer
    x = 4,992.63

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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.