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Finding the Fourth Proportional to 33,212.80, 49,828.80 and 9,839.68

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Solution

The fourth proportional to 33,212.80, 49,828.80 and 9,839.68 is: 14,762.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,212.80 : 49,828.80 = 9,839.68 : x
  2. Step 2: Convert to fraction form
    33,212.80/49,828.80 = 9,839.68/x
  3. Step 3: Cross multiply
    33,212.80x = 49,828.80 × 9,839.68
  4. Step 4: Simplify right side
    33,212.80x = 490,299,446.78
  5. Step 5: Solve for x
    x = 490,299,446.78/33,212.80
  6. Step 6: Final answer
    x = 14,762.36

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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.