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Finding the Fourth Proportional to 61,195.95, 91,786.64 and 16,827.21

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Solution

The fourth proportional to 61,195.95, 91,786.64 and 16,827.21 is: 25,238.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,195.95 : 91,786.64 = 16,827.21 : x
  2. Step 2: Convert to fraction form
    61,195.95/91,786.64 = 16,827.21/x
  3. Step 3: Cross multiply
    61,195.95x = 91,786.64 × 16,827.21
  4. Step 4: Simplify right side
    61,195.95x = 1,544,512,982.34
  5. Step 5: Solve for x
    x = 1,544,512,982.34/61,195.95
  6. Step 6: Final answer
    x = 25,238.81

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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.