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Finding the Third Proportional to 4,478 and 9,604

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Solution

The third proportional to 4,478 and 9,604 is: 20,597.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,478 : 9,604 = 9,604 : x
  2. Step 2: Convert to fraction form
    4,478/9,604 = 9,604/x
  3. Step 3: Cross multiply
    4,478x = 9,604 × 9,604
  4. Step 4: Simplify right side
    4,478x = 92,236,816
  5. Step 5: Solve for x
    x = 92,236,816/4,478
  6. Step 6: Final answer
    x = 20,597.77

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.