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Finding the Fourth Proportional to 38,513.52, 53,128.44 and 25,942.32

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Solution

The fourth proportional to 38,513.52, 53,128.44 and 25,942.32 is: 35,786.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,513.52 : 53,128.44 = 25,942.32 : x
  2. Step 2: Convert to fraction form
    38,513.52/53,128.44 = 25,942.32/x
  3. Step 3: Cross multiply
    38,513.52x = 53,128.44 × 25,942.32
  4. Step 4: Simplify right side
    38,513.52x = 1,378,274,991.58
  5. Step 5: Solve for x
    x = 1,378,274,991.58/38,513.52
  6. Step 6: Final answer
    x = 35,786.78

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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.