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Finding the Fourth Proportional to 5,692.32, 7,855.44 and 3,208.32

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Solution

The fourth proportional to 5,692.32, 7,855.44 and 3,208.32 is: 4,427.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,692.32 : 7,855.44 = 3,208.32 : x
  2. Step 2: Convert to fraction form
    5,692.32/7,855.44 = 3,208.32/x
  3. Step 3: Cross multiply
    5,692.32x = 7,855.44 × 3,208.32
  4. Step 4: Simplify right side
    5,692.32x = 25,202,765.26
  5. Step 5: Solve for x
    x = 25,202,765.26/5,692.32
  6. Step 6: Final answer
    x = 4,427.50

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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.