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Finding the Third Proportional to 3,602.81 and 6,805.69

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Solution

The third proportional to 3,602.81 and 6,805.69 is: 12,855.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,602.81 : 6,805.69 = 6,805.69 : x
  2. Step 2: Convert to fraction form
    3,602.81/6,805.69 = 6,805.69/x
  3. Step 3: Cross multiply
    3,602.81x = 6,805.69 × 6,805.69
  4. Step 4: Simplify right side
    3,602.81x = 46,317,382.35
  5. Step 5: Solve for x
    x = 46,317,382.35/3,602.81
  6. Step 6: Final answer
    x = 12,855.90

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Why These Related Problems?

These problems maintain the same ratio (1.89) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.