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Finding the Third Proportional to 413.25 and 892.88

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Solution

The third proportional to 413.25 and 892.88 is: 1,929.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    413.25 : 892.88 = 892.88 : x
  2. Step 2: Convert to fraction form
    413.25/892.88 = 892.88/x
  3. Step 3: Cross multiply
    413.25x = 892.88 × 892.88
  4. Step 4: Simplify right side
    413.25x = 797,225.77
  5. Step 5: Solve for x
    x = 797,225.77/413.25
  6. Step 6: Final answer
    x = 1,929.16

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.