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Finding the Fourth Proportional to 10,729.10, 16,093.65 and 8,906.60

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Solution

The fourth proportional to 10,729.10, 16,093.65 and 8,906.60 is: 13,359.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,729.10 : 16,093.65 = 8,906.60 : x
  2. Step 2: Convert to fraction form
    10,729.10/16,093.65 = 8,906.60/x
  3. Step 3: Cross multiply
    10,729.10x = 16,093.65 × 8,906.60
  4. Step 4: Simplify right side
    10,729.10x = 143,339,703.09
  5. Step 5: Solve for x
    x = 143,339,703.09/10,729.10
  6. Step 6: Final answer
    x = 13,359.90

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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.