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Finding the Fourth Proportional to 13,496.73, 20,245.44 and 7,954.05

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Solution

The fourth proportional to 13,496.73, 20,245.44 and 7,954.05 is: 11,931.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,496.73 : 20,245.44 = 7,954.05 : x
  2. Step 2: Convert to fraction form
    13,496.73/20,245.44 = 7,954.05/x
  3. Step 3: Cross multiply
    13,496.73x = 20,245.44 × 7,954.05
  4. Step 4: Simplify right side
    13,496.73x = 161,033,233.90
  5. Step 5: Solve for x
    x = 161,033,233.90/13,496.73
  6. Step 6: Final answer
    x = 11,931.28

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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.