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Finding the Third Proportional to 66,936 and 100,407

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Solution

The third proportional to 66,936 and 100,407 is: 150,615.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,936 : 100,407 = 100,407 : x
  2. Step 2: Convert to fraction form
    66,936/100,407 = 100,407/x
  3. Step 3: Cross multiply
    66,936x = 100,407 × 100,407
  4. Step 4: Simplify right side
    66,936x = 10,081,565,649
  5. Step 5: Solve for x
    x = 10,081,565,649/66,936
  6. Step 6: Final answer
    x = 150,615.00

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.