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Finding the Fourth Proportional to 33,940.53, 46,839.20 and 20,509.22

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Solution

The fourth proportional to 33,940.53, 46,839.20 and 20,509.22 is: 28,303.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,940.53 : 46,839.20 = 20,509.22 : x
  2. Step 2: Convert to fraction form
    33,940.53/46,839.20 = 20,509.22/x
  3. Step 3: Cross multiply
    33,940.53x = 46,839.20 × 20,509.22
  4. Step 4: Simplify right side
    33,940.53x = 960,635,120.68
  5. Step 5: Solve for x
    x = 960,635,120.68/33,940.53
  6. Step 6: Final answer
    x = 28,303.48

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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.