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Finding the Third Proportional to 813 and 925.50

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Solution

The third proportional to 813 and 925.50 is: 1,053.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    813 : 925.50 = 925.50 : x
  2. Step 2: Convert to fraction form
    813/925.50 = 925.50/x
  3. Step 3: Cross multiply
    813x = 925.50 × 925.50
  4. Step 4: Simplify right side
    813x = 856,550.25
  5. Step 5: Solve for x
    x = 856,550.25/813
  6. Step 6: Final answer
    x = 1,053.57

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Why These Related Problems?

These problems maintain the same ratio (1.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.