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Finding the Third Proportional to 548.25 and 835.13

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Solution

The third proportional to 548.25 and 835.13 is: 1,272.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    548.25 : 835.13 = 835.13 : x
  2. Step 2: Convert to fraction form
    548.25/835.13 = 835.13/x
  3. Step 3: Cross multiply
    548.25x = 835.13 × 835.13
  4. Step 4: Simplify right side
    548.25x = 697,433.77
  5. Step 5: Solve for x
    x = 697,433.77/548.25
  6. Step 6: Final answer
    x = 1,272.11

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.