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Finding the Fourth Proportional to 33,420.13, 46,119.78 and 18,516.13

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Solution

The fourth proportional to 33,420.13, 46,119.78 and 18,516.13 is: 25,552.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,420.13 : 46,119.78 = 18,516.13 : x
  2. Step 2: Convert to fraction form
    33,420.13/46,119.78 = 18,516.13/x
  3. Step 3: Cross multiply
    33,420.13x = 46,119.78 × 18,516.13
  4. Step 4: Simplify right side
    33,420.13x = 853,959,842.05
  5. Step 5: Solve for x
    x = 853,959,842.05/33,420.13
  6. Step 6: Final answer
    x = 25,552.26

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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.