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Finding the Fourth Proportional to 53,914.30, 80,855.86 and 18,374.82

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Solution

The fourth proportional to 53,914.30, 80,855.86 and 18,374.82 is: 27,556.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,914.30 : 80,855.86 = 18,374.82 : x
  2. Step 2: Convert to fraction form
    53,914.30/80,855.86 = 18,374.82/x
  3. Step 3: Cross multiply
    53,914.30x = 80,855.86 × 18,374.82
  4. Step 4: Simplify right side
    53,914.30x = 1,485,711,873.45
  5. Step 5: Solve for x
    x = 1,485,711,873.45/53,914.30
  6. Step 6: Final answer
    x = 27,556.92

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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.