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Finding the Third Proportional to 746 and 813.50

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Solution

The third proportional to 746 and 813.50 is: 887.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    746 : 813.50 = 813.50 : x
  2. Step 2: Convert to fraction form
    746/813.50 = 813.50/x
  3. Step 3: Cross multiply
    746x = 813.50 × 813.50
  4. Step 4: Simplify right side
    746x = 661,782.25
  5. Step 5: Solve for x
    x = 661,782.25/746
  6. Step 6: Final answer
    x = 887.11

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Why These Related Problems?

These problems maintain the same ratio (1.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.