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Finding the Third Proportional to 265 and 551.50

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Solution

The third proportional to 265 and 551.50 is: 1,147.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    265 : 551.50 = 551.50 : x
  2. Step 2: Convert to fraction form
    265/551.50 = 551.50/x
  3. Step 3: Cross multiply
    265x = 551.50 × 551.50
  4. Step 4: Simplify right side
    265x = 304,152.25
  5. Step 5: Solve for x
    x = 304,152.25/265
  6. Step 6: Final answer
    x = 1,147.74

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Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.