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Finding the Fourth Proportional to 11,992.40, 16,553.40 and 8,014.40

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Solution

The fourth proportional to 11,992.40, 16,553.40 and 8,014.40 is: 11,062.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,992.40 : 16,553.40 = 8,014.40 : x
  2. Step 2: Convert to fraction form
    11,992.40/16,553.40 = 8,014.40/x
  3. Step 3: Cross multiply
    11,992.40x = 16,553.40 × 8,014.40
  4. Step 4: Simplify right side
    11,992.40x = 132,665,568.96
  5. Step 5: Solve for x
    x = 132,665,568.96/11,992.40
  6. Step 6: Final answer
    x = 11,062.47

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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.