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Finding the Third Proportional to 831.75 and 1,110.75

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Solution

The third proportional to 831.75 and 1,110.75 is: 1,483.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    831.75 : 1,110.75 = 1,110.75 : x
  2. Step 2: Convert to fraction form
    831.75/1,110.75 = 1,110.75/x
  3. Step 3: Cross multiply
    831.75x = 1,110.75 × 1,110.75
  4. Step 4: Simplify right side
    831.75x = 1,233,765.56
  5. Step 5: Solve for x
    x = 1,233,765.56/831.75
  6. Step 6: Final answer
    x = 1,483.34

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Why These Related Problems?

These problems maintain the same ratio (1.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.