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Finding the Fourth Proportional to 33,112.13, 45,694.74 and 18,208.13

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Solution

The fourth proportional to 33,112.13, 45,694.74 and 18,208.13 is: 25,127.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,112.13 : 45,694.74 = 18,208.13 : x
  2. Step 2: Convert to fraction form
    33,112.13/45,694.74 = 18,208.13/x
  3. Step 3: Cross multiply
    33,112.13x = 45,694.74 × 18,208.13
  4. Step 4: Simplify right side
    33,112.13x = 832,015,537.76
  5. Step 5: Solve for x
    x = 832,015,537.76/33,112.13
  6. Step 6: Final answer
    x = 25,127.22

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.