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Finding the Fourth Proportional to 16,761.13, 25,144.94 and 5,669.63

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Solution

The fourth proportional to 16,761.13, 25,144.94 and 5,669.63 is: 8,505.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,761.13 : 25,144.94 = 5,669.63 : x
  2. Step 2: Convert to fraction form
    16,761.13/25,144.94 = 5,669.63/x
  3. Step 3: Cross multiply
    16,761.13x = 25,144.94 × 5,669.63
  4. Step 4: Simplify right side
    16,761.13x = 142,562,488.92
  5. Step 5: Solve for x
    x = 142,562,488.92/16,761.13
  6. Step 6: Final answer
    x = 8,505.54

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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.