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Finding the Fourth Proportional to 19,250.19, 28,879.20 and 10,934.19

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Solution

The fourth proportional to 19,250.19, 28,879.20 and 10,934.19 is: 16,403.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,250.19 : 28,879.20 = 10,934.19 : x
  2. Step 2: Convert to fraction form
    19,250.19/28,879.20 = 10,934.19/x
  3. Step 3: Cross multiply
    19,250.19x = 28,879.20 × 10,934.19
  4. Step 4: Simplify right side
    19,250.19x = 315,770,659.85
  5. Step 5: Solve for x
    x = 315,770,659.85/19,250.19
  6. Step 6: Final answer
    x = 16,403.51

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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.