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Finding the Fourth Proportional to 33,643.96, 50,480.40 and 13,936.84

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Solution

The fourth proportional to 33,643.96, 50,480.40 and 13,936.84 is: 20,911.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,643.96 : 50,480.40 = 13,936.84 : x
  2. Step 2: Convert to fraction form
    33,643.96/50,480.40 = 13,936.84/x
  3. Step 3: Cross multiply
    33,643.96x = 50,480.40 × 13,936.84
  4. Step 4: Simplify right side
    33,643.96x = 703,537,257.94
  5. Step 5: Solve for x
    x = 703,537,257.94/33,643.96
  6. Step 6: Final answer
    x = 20,911.25

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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.