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Finding the Fourth Proportional to 3,326.78, 4,593.11 and 2,069.21

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Solution

The fourth proportional to 3,326.78, 4,593.11 and 2,069.21 is: 2,856.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,326.78 : 4,593.11 = 2,069.21 : x
  2. Step 2: Convert to fraction form
    3,326.78/4,593.11 = 2,069.21/x
  3. Step 3: Cross multiply
    3,326.78x = 4,593.11 × 2,069.21
  4. Step 4: Simplify right side
    3,326.78x = 9,504,075.83
  5. Step 5: Solve for x
    x = 9,504,075.83/3,326.78
  6. Step 6: Final answer
    x = 2,856.84

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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.