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Finding the Fourth Proportional to 57,703.33, 86,546.33 and 18,255.32

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Solution

The fourth proportional to 57,703.33, 86,546.33 and 18,255.32 is: 27,380.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,703.33 : 86,546.33 = 18,255.32 : x
  2. Step 2: Convert to fraction form
    57,703.33/86,546.33 = 18,255.32/x
  3. Step 3: Cross multiply
    57,703.33x = 86,546.33 × 18,255.32
  4. Step 4: Simplify right side
    57,703.33x = 1,579,930,424.97
  5. Step 5: Solve for x
    x = 1,579,930,424.97/57,703.33
  6. Step 6: Final answer
    x = 27,380.23

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.