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Finding the Fourth Proportional to 16,891.86, 25,299.72 and 8,133.33

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Solution

The fourth proportional to 16,891.86, 25,299.72 and 8,133.33 is: 12,181.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,891.86 : 25,299.72 = 8,133.33 : x
  2. Step 2: Convert to fraction form
    16,891.86/25,299.72 = 8,133.33/x
  3. Step 3: Cross multiply
    16,891.86x = 25,299.72 × 8,133.33
  4. Step 4: Simplify right side
    16,891.86x = 205,770,971.67
  5. Step 5: Solve for x
    x = 205,770,971.67/16,891.86
  6. Step 6: Final answer
    x = 12,181.66

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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.