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Finding the Fourth Proportional to 7,692.69, 11,544.51 and 2,763.06

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Solution

The fourth proportional to 7,692.69, 11,544.51 and 2,763.06 is: 4,146.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,692.69 : 11,544.51 = 2,763.06 : x
  2. Step 2: Convert to fraction form
    7,692.69/11,544.51 = 2,763.06/x
  3. Step 3: Cross multiply
    7,692.69x = 11,544.51 × 2,763.06
  4. Step 4: Simplify right side
    7,692.69x = 31,898,173.80
  5. Step 5: Solve for x
    x = 31,898,173.80/7,692.69
  6. Step 6: Final answer
    x = 4,146.56

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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.