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Finding the Fourth Proportional to 11,960.28, 16,505.28 and 7,241.28

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Solution

The fourth proportional to 11,960.28, 16,505.28 and 7,241.28 is: 9,993.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,960.28 : 16,505.28 = 7,241.28 : x
  2. Step 2: Convert to fraction form
    11,960.28/16,505.28 = 7,241.28/x
  3. Step 3: Cross multiply
    11,960.28x = 16,505.28 × 7,241.28
  4. Step 4: Simplify right side
    11,960.28x = 119,519,353.96
  5. Step 5: Solve for x
    x = 119,519,353.96/11,960.28
  6. Step 6: Final answer
    x = 9,993.02

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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.