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Finding the Fourth Proportional to 27,969.21, 41,940.18 and 9,951.44

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Solution

The fourth proportional to 27,969.21, 41,940.18 and 9,951.44 is: 14,922.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,969.21 : 41,940.18 = 9,951.44 : x
  2. Step 2: Convert to fraction form
    27,969.21/41,940.18 = 9,951.44/x
  3. Step 3: Cross multiply
    27,969.21x = 41,940.18 × 9,951.44
  4. Step 4: Simplify right side
    27,969.21x = 417,365,184.86
  5. Step 5: Solve for x
    x = 417,365,184.86/27,969.21
  6. Step 6: Final answer
    x = 14,922.31

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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.