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Finding the Third Proportional to 834.50 and 1,186.25

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Solution

The third proportional to 834.50 and 1,186.25 is: 1,686.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    834.50 : 1,186.25 = 1,186.25 : x
  2. Step 2: Convert to fraction form
    834.50/1,186.25 = 1,186.25/x
  3. Step 3: Cross multiply
    834.50x = 1,186.25 × 1,186.25
  4. Step 4: Simplify right side
    834.50x = 1,407,189.06
  5. Step 5: Solve for x
    x = 1,407,189.06/834.50
  6. Step 6: Final answer
    x = 1,686.27

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Why These Related Problems?

These problems maintain the same ratio (1.42) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.