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Finding the Fourth Proportional to 3,792.84, 5,692.44 and 1,945.73

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Solution

The fourth proportional to 3,792.84, 5,692.44 and 1,945.73 is: 2,920.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,792.84 : 5,692.44 = 1,945.73 : x
  2. Step 2: Convert to fraction form
    3,792.84/5,692.44 = 1,945.73/x
  3. Step 3: Cross multiply
    3,792.84x = 5,692.44 × 1,945.73
  4. Step 4: Simplify right side
    3,792.84x = 11,075,972.81
  5. Step 5: Solve for x
    x = 11,075,972.81/3,792.84
  6. Step 6: Final answer
    x = 2,920.23

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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.