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Finding the Fourth Proportional to 11,859.52, 17,879.32 and 11,224.48

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Solution

The fourth proportional to 11,859.52, 17,879.32 and 11,224.48 is: 16,921.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,859.52 : 17,879.32 = 11,224.48 : x
  2. Step 2: Convert to fraction form
    11,859.52/17,879.32 = 11,224.48/x
  3. Step 3: Cross multiply
    11,859.52x = 17,879.32 × 11,224.48
  4. Step 4: Simplify right side
    11,859.52x = 200,686,069.75
  5. Step 5: Solve for x
    x = 200,686,069.75/11,859.52
  6. Step 6: Final answer
    x = 16,921.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.