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Finding the Fourth Proportional to 10,999.44, 16,499.72 and 3,208.84

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Solution

The fourth proportional to 10,999.44, 16,499.72 and 3,208.84 is: 4,813.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,999.44 : 16,499.72 = 3,208.84 : x
  2. Step 2: Convert to fraction form
    10,999.44/16,499.72 = 3,208.84/x
  3. Step 3: Cross multiply
    10,999.44x = 16,499.72 × 3,208.84
  4. Step 4: Simplify right side
    10,999.44x = 52,944,961.52
  5. Step 5: Solve for x
    x = 52,944,961.52/10,999.44
  6. Step 6: Final answer
    x = 4,813.42

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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.