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Finding the Third Proportional to 43,219.50 and 66,672

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Solution

The third proportional to 43,219.50 and 66,672 is: 102,850.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,219.50 : 66,672 = 66,672 : x
  2. Step 2: Convert to fraction form
    43,219.50/66,672 = 66,672/x
  3. Step 3: Cross multiply
    43,219.50x = 66,672 × 66,672
  4. Step 4: Simplify right side
    43,219.50x = 4,445,155,584
  5. Step 5: Solve for x
    x = 4,445,155,584/43,219.50
  6. Step 6: Final answer
    x = 102,850.69

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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.