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Finding the Third Proportional to 18,604 and 28,100

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Solution

The third proportional to 18,604 and 28,100 is: 42,443.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,604 : 28,100 = 28,100 : x
  2. Step 2: Convert to fraction form
    18,604/28,100 = 28,100/x
  3. Step 3: Cross multiply
    18,604x = 28,100 × 28,100
  4. Step 4: Simplify right side
    18,604x = 789,610,000
  5. Step 5: Solve for x
    x = 789,610,000/18,604
  6. Step 6: Final answer
    x = 42,443.02

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.