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Finding the Fourth Proportional to 53,796.83, 80,695.65 and 18,736.40

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Solution

The fourth proportional to 53,796.83, 80,695.65 and 18,736.40 is: 28,104.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,796.83 : 80,695.65 = 18,736.40 : x
  2. Step 2: Convert to fraction form
    53,796.83/80,695.65 = 18,736.40/x
  3. Step 3: Cross multiply
    53,796.83x = 80,695.65 × 18,736.40
  4. Step 4: Simplify right side
    53,796.83x = 1,511,945,976.66
  5. Step 5: Solve for x
    x = 1,511,945,976.66/53,796.83
  6. Step 6: Final answer
    x = 28,104.74

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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.