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Finding the Fourth Proportional to 13,957.41, 20,936.11 and 6,556.44

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Solution

The fourth proportional to 13,957.41, 20,936.11 and 6,556.44 is: 9,834.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,957.41 : 20,936.11 = 6,556.44 : x
  2. Step 2: Convert to fraction form
    13,957.41/20,936.11 = 6,556.44/x
  3. Step 3: Cross multiply
    13,957.41x = 20,936.11 × 6,556.44
  4. Step 4: Simplify right side
    13,957.41x = 137,266,227.98
  5. Step 5: Solve for x
    x = 137,266,227.98/13,957.41
  6. Step 6: Final answer
    x = 9,834.65

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Similar ratio
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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.