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Finding the Fourth Proportional to 45,840.43, 68,728.07 and 17,736.80

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Solution

The fourth proportional to 45,840.43, 68,728.07 and 17,736.80 is: 26,592.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,840.43 : 68,728.07 = 17,736.80 : x
  2. Step 2: Convert to fraction form
    45,840.43/68,728.07 = 17,736.80/x
  3. Step 3: Cross multiply
    45,840.43x = 68,728.07 × 17,736.80
  4. Step 4: Simplify right side
    45,840.43x = 1,219,015,876.09
  5. Step 5: Solve for x
    x = 1,219,015,876.09/45,840.43
  6. Step 6: Final answer
    x = 26,592.59

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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.