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Finding the Third Proportional to 248.63 and 551.25

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Solution

The third proportional to 248.63 and 551.25 is: 1,222.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    248.63 : 551.25 = 551.25 : x
  2. Step 2: Convert to fraction form
    248.63/551.25 = 551.25/x
  3. Step 3: Cross multiply
    248.63x = 551.25 × 551.25
  4. Step 4: Simplify right side
    248.63x = 303,876.56
  5. Step 5: Solve for x
    x = 303,876.56/248.63
  6. Step 6: Final answer
    x = 1,222.23

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Why These Related Problems?

These problems maintain the same ratio (2.22) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.