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Finding the Third Proportional to 3,260 and 4,645

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Solution

The third proportional to 3,260 and 4,645 is: 6,618.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,260 : 4,645 = 4,645 : x
  2. Step 2: Convert to fraction form
    3,260/4,645 = 4,645/x
  3. Step 3: Cross multiply
    3,260x = 4,645 × 4,645
  4. Step 4: Simplify right side
    3,260x = 21,576,025
  5. Step 5: Solve for x
    x = 21,576,025/3,260
  6. Step 6: Final answer
    x = 6,618.41

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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.