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Finding the Fourth Proportional to 33,867, 46,725.66 and 21,939.48

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Solution

The fourth proportional to 33,867, 46,725.66 and 21,939.48 is: 30,269.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,867 : 46,725.66 = 21,939.48 : x
  2. Step 2: Convert to fraction form
    33,867/46,725.66 = 21,939.48/x
  3. Step 3: Cross multiply
    33,867x = 46,725.66 × 21,939.48
  4. Step 4: Simplify right side
    33,867x = 1,025,136,683.06
  5. Step 5: Solve for x
    x = 1,025,136,683.06/33,867
  6. Step 6: Final answer
    x = 30,269.49

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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.