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Finding the Fourth Proportional to 33,881, 46,755.78 and 20,633

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Solution

The fourth proportional to 33,881, 46,755.78 and 20,633 is: 28,473.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,881 : 46,755.78 = 20,633 : x
  2. Step 2: Convert to fraction form
    33,881/46,755.78 = 20,633/x
  3. Step 3: Cross multiply
    33,881x = 46,755.78 × 20,633
  4. Step 4: Simplify right side
    33,881x = 964,712,008.74
  5. Step 5: Solve for x
    x = 964,712,008.74/33,881
  6. Step 6: Final answer
    x = 28,473.54

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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.