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Finding the Fourth Proportional to 11,245.91, 16,879.16 and 5,703.08

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Solution

The fourth proportional to 11,245.91, 16,879.16 and 5,703.08 is: 8,559.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,245.91 : 16,879.16 = 5,703.08 : x
  2. Step 2: Convert to fraction form
    11,245.91/16,879.16 = 5,703.08/x
  3. Step 3: Cross multiply
    11,245.91x = 16,879.16 × 5,703.08
  4. Step 4: Simplify right side
    11,245.91x = 96,263,213.50
  5. Step 5: Solve for x
    x = 96,263,213.50/11,245.91
  6. Step 6: Final answer
    x = 8,559.84

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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.