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Finding the Fourth Proportional to 33,056, 45,625.16 and 18,917

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Solution

The fourth proportional to 33,056, 45,625.16 and 18,917 is: 26,109.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,056 : 45,625.16 = 18,917 : x
  2. Step 2: Convert to fraction form
    33,056/45,625.16 = 18,917/x
  3. Step 3: Cross multiply
    33,056x = 45,625.16 × 18,917
  4. Step 4: Simplify right side
    33,056x = 863,091,151.72
  5. Step 5: Solve for x
    x = 863,091,151.72/33,056
  6. Step 6: Final answer
    x = 26,109.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.