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Finding the Fourth Proportional to 11,167.80, 16,719.30 and 10,843.80

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Solution

The fourth proportional to 11,167.80, 16,719.30 and 10,843.80 is: 16,234.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,167.80 : 16,719.30 = 10,843.80 : x
  2. Step 2: Convert to fraction form
    11,167.80/16,719.30 = 10,843.80/x
  3. Step 3: Cross multiply
    11,167.80x = 16,719.30 × 10,843.80
  4. Step 4: Simplify right side
    11,167.80x = 181,300,745.34
  5. Step 5: Solve for x
    x = 181,300,745.34/11,167.80
  6. Step 6: Final answer
    x = 16,234.24

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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.