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Finding the Third Proportional to 7,622 and 11,730.25

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Solution

The third proportional to 7,622 and 11,730.25 is: 18,052.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,622 : 11,730.25 = 11,730.25 : x
  2. Step 2: Convert to fraction form
    7,622/11,730.25 = 11,730.25/x
  3. Step 3: Cross multiply
    7,622x = 11,730.25 × 11,730.25
  4. Step 4: Simplify right side
    7,622x = 137,598,765.06
  5. Step 5: Solve for x
    x = 137,598,765.06/7,622
  6. Step 6: Final answer
    x = 18,052.84

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.