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Finding the Third Proportional to 3,606 and 5,318

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Solution

The third proportional to 3,606 and 5,318 is: 7,842.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,606 : 5,318 = 5,318 : x
  2. Step 2: Convert to fraction form
    3,606/5,318 = 5,318/x
  3. Step 3: Cross multiply
    3,606x = 5,318 × 5,318
  4. Step 4: Simplify right side
    3,606x = 28,281,124
  5. Step 5: Solve for x
    x = 28,281,124/3,606
  6. Step 6: Final answer
    x = 7,842.80

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.