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Finding the Fourth Proportional to 2,692.62, 3,716.82 and 1,748.64

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Solution

The fourth proportional to 2,692.62, 3,716.82 and 1,748.64 is: 2,413.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,692.62 : 3,716.82 = 1,748.64 : x
  2. Step 2: Convert to fraction form
    2,692.62/3,716.82 = 1,748.64/x
  3. Step 3: Cross multiply
    2,692.62x = 3,716.82 × 1,748.64
  4. Step 4: Simplify right side
    2,692.62x = 6,499,380.12
  5. Step 5: Solve for x
    x = 6,499,380.12/2,692.62
  6. Step 6: Final answer
    x = 2,413.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.