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Finding the Third Proportional to 36,318 and 49,289

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Solution

The third proportional to 36,318 and 49,289 is: 66,892.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,318 : 49,289 = 49,289 : x
  2. Step 2: Convert to fraction form
    36,318/49,289 = 49,289/x
  3. Step 3: Cross multiply
    36,318x = 49,289 × 49,289
  4. Step 4: Simplify right side
    36,318x = 2,429,405,521
  5. Step 5: Solve for x
    x = 2,429,405,521/36,318
  6. Step 6: Final answer
    x = 66,892.60

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Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.