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Finding the Third Proportional to 725 and 994.50

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Solution

The third proportional to 725 and 994.50 is: 1,364.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    725 : 994.50 = 994.50 : x
  2. Step 2: Convert to fraction form
    725/994.50 = 994.50/x
  3. Step 3: Cross multiply
    725x = 994.50 × 994.50
  4. Step 4: Simplify right side
    725x = 989,030.25
  5. Step 5: Solve for x
    x = 989,030.25/725
  6. Step 6: Final answer
    x = 1,364.18

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.