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Finding the Fourth Proportional to 39,396, 54,365.94 and 23,481.12

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Solution

The fourth proportional to 39,396, 54,365.94 and 23,481.12 is: 32,403.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,396 : 54,365.94 = 23,481.12 : x
  2. Step 2: Convert to fraction form
    39,396/54,365.94 = 23,481.12/x
  3. Step 3: Cross multiply
    39,396x = 54,365.94 × 23,481.12
  4. Step 4: Simplify right side
    39,396x = 1,276,573,161.05
  5. Step 5: Solve for x
    x = 1,276,573,161.05/39,396
  6. Step 6: Final answer
    x = 32,403.62

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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.