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Finding the Fourth Proportional to 33,112.25, 45,694.91 and 18,208.25

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Solution

The fourth proportional to 33,112.25, 45,694.91 and 18,208.25 is: 25,127.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,112.25 : 45,694.91 = 18,208.25 : x
  2. Step 2: Convert to fraction form
    33,112.25/45,694.91 = 18,208.25/x
  3. Step 3: Cross multiply
    33,112.25x = 45,694.91 × 18,208.25
  4. Step 4: Simplify right side
    33,112.25x = 832,024,253.97
  5. Step 5: Solve for x
    x = 832,024,253.97/33,112.25
  6. Step 6: Final answer
    x = 25,127.39

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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.