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Finding the Third Proportional to 43,632 and 66,960

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Solution

The third proportional to 43,632 and 66,960 is: 102,760.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,632 : 66,960 = 66,960 : x
  2. Step 2: Convert to fraction form
    43,632/66,960 = 66,960/x
  3. Step 3: Cross multiply
    43,632x = 66,960 × 66,960
  4. Step 4: Simplify right side
    43,632x = 4,483,641,600
  5. Step 5: Solve for x
    x = 4,483,641,600/43,632
  6. Step 6: Final answer
    x = 102,760.40

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.