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Finding the Third Proportional to 7,642 and 13,604

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Solution

The third proportional to 7,642 and 13,604 is: 24,217.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,642 : 13,604 = 13,604 : x
  2. Step 2: Convert to fraction form
    7,642/13,604 = 13,604/x
  3. Step 3: Cross multiply
    7,642x = 13,604 × 13,604
  4. Step 4: Simplify right side
    7,642x = 185,068,816
  5. Step 5: Solve for x
    x = 185,068,816/7,642
  6. Step 6: Final answer
    x = 24,217.33

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Why These Related Problems?

These problems maintain the same ratio (1.78) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.