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Finding the Fourth Proportional to 53,917.82, 80,872.82 and 18,376.19

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Solution

The fourth proportional to 53,917.82, 80,872.82 and 18,376.19 is: 27,562.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,917.82 : 80,872.82 = 18,376.19 : x
  2. Step 2: Convert to fraction form
    53,917.82/80,872.82 = 18,376.19/x
  3. Step 3: Cross multiply
    53,917.82x = 80,872.82 × 18,376.19
  4. Step 4: Simplify right side
    53,917.82x = 1,486,134,416.46
  5. Step 5: Solve for x
    x = 1,486,134,416.46/53,917.82
  6. Step 6: Final answer
    x = 27,562.95

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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.