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Finding the Fourth Proportional to 55,992.33, 83,978.78 and 20,924.73

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Solution

The fourth proportional to 55,992.33, 83,978.78 and 20,924.73 is: 31,383.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,992.33 : 83,978.78 = 20,924.73 : x
  2. Step 2: Convert to fraction form
    55,992.33/83,978.78 = 20,924.73/x
  3. Step 3: Cross multiply
    55,992.33x = 83,978.78 × 20,924.73
  4. Step 4: Simplify right side
    55,992.33x = 1,757,233,192.61
  5. Step 5: Solve for x
    x = 1,757,233,192.61/55,992.33
  6. Step 6: Final answer
    x = 31,383.46

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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.