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Finding the Fourth Proportional to 61,907.83, 92,866.91 and 19,793.90

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Solution

The fourth proportional to 61,907.83, 92,866.91 and 19,793.90 is: 29,692.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,907.83 : 92,866.91 = 19,793.90 : x
  2. Step 2: Convert to fraction form
    61,907.83/92,866.91 = 19,793.90/x
  3. Step 3: Cross multiply
    61,907.83x = 92,866.91 × 19,793.90
  4. Step 4: Simplify right side
    61,907.83x = 1,838,198,463.05
  5. Step 5: Solve for x
    x = 1,838,198,463.05/61,907.83
  6. Step 6: Final answer
    x = 29,692.50

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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.