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Finding the Fourth Proportional to 39,292.76, 58,939.42 and 11,212.76

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Solution

The fourth proportional to 39,292.76, 58,939.42 and 11,212.76 is: 16,819.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,292.76 : 58,939.42 = 11,212.76 : x
  2. Step 2: Convert to fraction form
    39,292.76/58,939.42 = 11,212.76/x
  3. Step 3: Cross multiply
    39,292.76x = 58,939.42 × 11,212.76
  4. Step 4: Simplify right side
    39,292.76x = 660,873,571.00
  5. Step 5: Solve for x
    x = 660,873,571.00/39,292.76
  6. Step 6: Final answer
    x = 16,819.22

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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.