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Finding the Third Proportional to 43,191 and 66,627

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Solution

The third proportional to 43,191 and 66,627 is: 102,779.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,191 : 66,627 = 66,627 : x
  2. Step 2: Convert to fraction form
    43,191/66,627 = 66,627/x
  3. Step 3: Cross multiply
    43,191x = 66,627 × 66,627
  4. Step 4: Simplify right side
    43,191x = 4,439,157,129
  5. Step 5: Solve for x
    x = 4,439,157,129/43,191
  6. Step 6: Final answer
    x = 102,779.68

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.