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Finding the Third Proportional to 831.13 and 1,834.75

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Solution

The third proportional to 831.13 and 1,834.75 is: 4,050.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    831.13 : 1,834.75 = 1,834.75 : x
  2. Step 2: Convert to fraction form
    831.13/1,834.75 = 1,834.75/x
  3. Step 3: Cross multiply
    831.13x = 1,834.75 × 1,834.75
  4. Step 4: Simplify right side
    831.13x = 3,366,307.56
  5. Step 5: Solve for x
    x = 3,366,307.56/831.13
  6. Step 6: Final answer
    x = 4,050.30

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Why These Related Problems?

These problems maintain the same ratio (2.21) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.