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Finding the Fourth Proportional to 9,940.44, 14,910.84 and 8,086.98

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Solution

The fourth proportional to 9,940.44, 14,910.84 and 8,086.98 is: 12,130.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,940.44 : 14,910.84 = 8,086.98 : x
  2. Step 2: Convert to fraction form
    9,940.44/14,910.84 = 8,086.98/x
  3. Step 3: Cross multiply
    9,940.44x = 14,910.84 × 8,086.98
  4. Step 4: Simplify right side
    9,940.44x = 120,583,664.86
  5. Step 5: Solve for x
    x = 120,583,664.86/9,940.44
  6. Step 6: Final answer
    x = 12,130.62

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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.