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Finding the Third Proportional to 43,193 and 66,630

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Solution

The third proportional to 43,193 and 66,630 is: 102,784.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,193 : 66,630 = 66,630 : x
  2. Step 2: Convert to fraction form
    43,193/66,630 = 66,630/x
  3. Step 3: Cross multiply
    43,193x = 66,630 × 66,630
  4. Step 4: Simplify right side
    43,193x = 4,439,556,900
  5. Step 5: Solve for x
    x = 4,439,556,900/43,193
  6. Step 6: Final answer
    x = 102,784.18

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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.