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Finding the Fourth Proportional to 61,791.38, 92,685.77 and 19,674.36

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Solution

The fourth proportional to 61,791.38, 92,685.77 and 19,674.36 is: 29,511.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,791.38 : 92,685.77 = 19,674.36 : x
  2. Step 2: Convert to fraction form
    61,791.38/92,685.77 = 19,674.36/x
  3. Step 3: Cross multiply
    61,791.38x = 92,685.77 × 19,674.36
  4. Step 4: Simplify right side
    61,791.38x = 1,823,533,205.86
  5. Step 5: Solve for x
    x = 1,823,533,205.86/61,791.38
  6. Step 6: Final answer
    x = 29,511.13

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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.