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Finding the Fourth Proportional to 52,086.67, 71,879.63 and 28,213.27

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Solution

The fourth proportional to 52,086.67, 71,879.63 and 28,213.27 is: 38,934.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,086.67 : 71,879.63 = 28,213.27 : x
  2. Step 2: Convert to fraction form
    52,086.67/71,879.63 = 28,213.27/x
  3. Step 3: Cross multiply
    52,086.67x = 71,879.63 × 28,213.27
  4. Step 4: Simplify right side
    52,086.67x = 2,027,959,408.69
  5. Step 5: Solve for x
    x = 2,027,959,408.69/52,086.67
  6. Step 6: Final answer
    x = 38,934.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.