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Finding the Fourth Proportional to 9,172.92, 13,753.92 and 3,327.60

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Solution

The fourth proportional to 9,172.92, 13,753.92 and 3,327.60 is: 4,989.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,172.92 : 13,753.92 = 3,327.60 : x
  2. Step 2: Convert to fraction form
    9,172.92/13,753.92 = 3,327.60/x
  3. Step 3: Cross multiply
    9,172.92x = 13,753.92 × 3,327.60
  4. Step 4: Simplify right side
    9,172.92x = 45,767,544.19
  5. Step 5: Solve for x
    x = 45,767,544.19/9,172.92
  6. Step 6: Final answer
    x = 4,989.42

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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.