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Finding the Third Proportional to 4,308 and 8,168

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Solution

The third proportional to 4,308 and 8,168 is: 15,486.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,308 : 8,168 = 8,168 : x
  2. Step 2: Convert to fraction form
    4,308/8,168 = 8,168/x
  3. Step 3: Cross multiply
    4,308x = 8,168 × 8,168
  4. Step 4: Simplify right side
    4,308x = 66,716,224
  5. Step 5: Solve for x
    x = 66,716,224/4,308
  6. Step 6: Final answer
    x = 15,486.59

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Why These Related Problems?

These problems maintain the same ratio (1.90) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.