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Finding the Fourth Proportional to 53,827, 80,753.55 and 16,891

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Solution

The fourth proportional to 53,827, 80,753.55 and 16,891 is: 25,340.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,827 : 80,753.55 = 16,891 : x
  2. Step 2: Convert to fraction form
    53,827/80,753.55 = 16,891/x
  3. Step 3: Cross multiply
    53,827x = 80,753.55 × 16,891
  4. Step 4: Simplify right side
    53,827x = 1,364,008,213.05
  5. Step 5: Solve for x
    x = 1,364,008,213.05/53,827
  6. Step 6: Final answer
    x = 25,340.60

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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.