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Finding the Third Proportional to 4,682.81 and 6,664.78

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Solution

The third proportional to 4,682.81 and 6,664.78 is: 9,485.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,682.81 : 6,664.78 = 6,664.78 : x
  2. Step 2: Convert to fraction form
    4,682.81/6,664.78 = 6,664.78/x
  3. Step 3: Cross multiply
    4,682.81x = 6,664.78 × 6,664.78
  4. Step 4: Simplify right side
    4,682.81x = 44,419,309.11
  5. Step 5: Solve for x
    x = 44,419,309.11/4,682.81
  6. Step 6: Final answer
    x = 9,485.60

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Why These Related Problems?

These problems maintain the same ratio (1.42) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.