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Finding the Fourth Proportional to 5,795.18, 8,692.80 and 2,872.80

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Solution

The fourth proportional to 5,795.18, 8,692.80 and 2,872.80 is: 4,309.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,795.18 : 8,692.80 = 2,872.80 : x
  2. Step 2: Convert to fraction form
    5,795.18/8,692.80 = 2,872.80/x
  3. Step 3: Cross multiply
    5,795.18x = 8,692.80 × 2,872.80
  4. Step 4: Simplify right side
    5,795.18x = 24,972,675.84
  5. Step 5: Solve for x
    x = 24,972,675.84/5,795.18
  6. Step 6: Final answer
    x = 4,309.21

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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.