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Finding the Third Proportional to 7,632 and 12,612

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Solution

The third proportional to 7,632 and 12,612 is: 20,841.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,632 : 12,612 = 12,612 : x
  2. Step 2: Convert to fraction form
    7,632/12,612 = 12,612/x
  3. Step 3: Cross multiply
    7,632x = 12,612 × 12,612
  4. Step 4: Simplify right side
    7,632x = 159,062,544
  5. Step 5: Solve for x
    x = 159,062,544/7,632
  6. Step 6: Final answer
    x = 20,841.53

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Why These Related Problems?

These problems maintain the same ratio (1.65) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.