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Finding the Third Proportional to 4,035.94 and 8,690.34

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Solution

The third proportional to 4,035.94 and 8,690.34 is: 18,712.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,035.94 : 8,690.34 = 8,690.34 : x
  2. Step 2: Convert to fraction form
    4,035.94/8,690.34 = 8,690.34/x
  3. Step 3: Cross multiply
    4,035.94x = 8,690.34 × 8,690.34
  4. Step 4: Simplify right side
    4,035.94x = 75,522,074.49
  5. Step 5: Solve for x
    x = 75,522,074.49/4,035.94
  6. Step 6: Final answer
    x = 18,712.40

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These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.