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Finding the Fourth Proportional to 33,921, 46,809.34 and 18,812.48

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Solution

The fourth proportional to 33,921, 46,809.34 and 18,812.48 is: 25,960.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,921 : 46,809.34 = 18,812.48 : x
  2. Step 2: Convert to fraction form
    33,921/46,809.34 = 18,812.48/x
  3. Step 3: Cross multiply
    33,921x = 46,809.34 × 18,812.48
  4. Step 4: Simplify right side
    33,921x = 880,599,772.56
  5. Step 5: Solve for x
    x = 880,599,772.56/33,921
  6. Step 6: Final answer
    x = 25,960.31

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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.