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Finding the Fourth Proportional to 13,957.44, 20,936.16 and 8,766.96

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Solution

The fourth proportional to 13,957.44, 20,936.16 and 8,766.96 is: 13,150.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,957.44 : 20,936.16 = 8,766.96 : x
  2. Step 2: Convert to fraction form
    13,957.44/20,936.16 = 8,766.96/x
  3. Step 3: Cross multiply
    13,957.44x = 20,936.16 × 8,766.96
  4. Step 4: Simplify right side
    13,957.44x = 183,546,477.27
  5. Step 5: Solve for x
    x = 183,546,477.27/13,957.44
  6. Step 6: Final answer
    x = 13,150.44

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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.