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Finding the Fourth Proportional to 17,879.37, 26,827.69 and 7,357.15

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Solution

The fourth proportional to 17,879.37, 26,827.69 and 7,357.15 is: 11,039.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,879.37 : 26,827.69 = 7,357.15 : x
  2. Step 2: Convert to fraction form
    17,879.37/26,827.69 = 7,357.15/x
  3. Step 3: Cross multiply
    17,879.37x = 26,827.69 × 7,357.15
  4. Step 4: Simplify right side
    17,879.37x = 197,375,339.48
  5. Step 5: Solve for x
    x = 197,375,339.48/17,879.37
  6. Step 6: Final answer
    x = 11,039.28

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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.