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Finding the Fourth Proportional to 6,662.12, 9,192.30 and 3,866.12

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Solution

The fourth proportional to 6,662.12, 9,192.30 and 3,866.12 is: 5,334.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,662.12 : 9,192.30 = 3,866.12 : x
  2. Step 2: Convert to fraction form
    6,662.12/9,192.30 = 3,866.12/x
  3. Step 3: Cross multiply
    6,662.12x = 9,192.30 × 3,866.12
  4. Step 4: Simplify right side
    6,662.12x = 35,538,534.88
  5. Step 5: Solve for x
    x = 35,538,534.88/6,662.12
  6. Step 6: Final answer
    x = 5,334.42

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Similar ratio
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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.