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Finding the Fourth Proportional to 8,086.11, 12,129.17 and 2,539.95

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Solution

The fourth proportional to 8,086.11, 12,129.17 and 2,539.95 is: 3,809.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,086.11 : 12,129.17 = 2,539.95 : x
  2. Step 2: Convert to fraction form
    8,086.11/12,129.17 = 2,539.95/x
  3. Step 3: Cross multiply
    8,086.11x = 12,129.17 × 2,539.95
  4. Step 4: Simplify right side
    8,086.11x = 30,807,485.34
  5. Step 5: Solve for x
    x = 30,807,485.34/8,086.11
  6. Step 6: Final answer
    x = 3,809.93

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.