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Finding the Fourth Proportional to 8,692.28, 11,995.42 and 4,713.42

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Solution

The fourth proportional to 8,692.28, 11,995.42 and 4,713.42 is: 6,504.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,692.28 : 11,995.42 = 4,713.42 : x
  2. Step 2: Convert to fraction form
    8,692.28/11,995.42 = 4,713.42/x
  3. Step 3: Cross multiply
    8,692.28x = 11,995.42 × 4,713.42
  4. Step 4: Simplify right side
    8,692.28x = 56,539,452.54
  5. Step 5: Solve for x
    x = 56,539,452.54/8,692.28
  6. Step 6: Final answer
    x = 6,504.56

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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.