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Finding the Third Proportional to 43,881.75 and 66,209.91

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Solution

The third proportional to 43,881.75 and 66,209.91 is: 99,899.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,881.75 : 66,209.91 = 66,209.91 : x
  2. Step 2: Convert to fraction form
    43,881.75/66,209.91 = 66,209.91/x
  3. Step 3: Cross multiply
    43,881.75x = 66,209.91 × 66,209.91
  4. Step 4: Simplify right side
    43,881.75x = 4,383,751,685.63
  5. Step 5: Solve for x
    x = 4,383,751,685.63/43,881.75
  6. Step 6: Final answer
    x = 99,899.20

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.