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Finding the Fourth Proportional to 11,939.96, 17,910.30 and 5,700.63

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Solution

The fourth proportional to 11,939.96, 17,910.30 and 5,700.63 is: 8,551.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,939.96 : 17,910.30 = 5,700.63 : x
  2. Step 2: Convert to fraction form
    11,939.96/17,910.30 = 5,700.63/x
  3. Step 3: Cross multiply
    11,939.96x = 17,910.30 × 5,700.63
  4. Step 4: Simplify right side
    11,939.96x = 102,099,993.49
  5. Step 5: Solve for x
    x = 102,099,993.49/11,939.96
  6. Step 6: Final answer
    x = 8,551.12

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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.