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Finding the Third Proportional to 22,400 and 47,100

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Solution

The third proportional to 22,400 and 47,100 is: 99,036.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,400 : 47,100 = 47,100 : x
  2. Step 2: Convert to fraction form
    22,400/47,100 = 47,100/x
  3. Step 3: Cross multiply
    22,400x = 47,100 × 47,100
  4. Step 4: Simplify right side
    22,400x = 2,218,410,000
  5. Step 5: Solve for x
    x = 2,218,410,000/22,400
  6. Step 6: Final answer
    x = 99,036.16

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Why These Related Problems?

These problems maintain the same ratio (2.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.