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Finding the Third Proportional to 20,000 and 43,168

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Solution

The third proportional to 20,000 and 43,168 is: 93,173.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,000 : 43,168 = 43,168 : x
  2. Step 2: Convert to fraction form
    20,000/43,168 = 43,168/x
  3. Step 3: Cross multiply
    20,000x = 43,168 × 43,168
  4. Step 4: Simplify right side
    20,000x = 1,863,476,224
  5. Step 5: Solve for x
    x = 1,863,476,224/20,000
  6. Step 6: Final answer
    x = 93,173.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.