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Finding the Third Proportional to 633.50 and 1,135

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Solution

The third proportional to 633.50 and 1,135 is: 2,033.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    633.50 : 1,135 = 1,135 : x
  2. Step 2: Convert to fraction form
    633.50/1,135 = 1,135/x
  3. Step 3: Cross multiply
    633.50x = 1,135 × 1,135
  4. Step 4: Simplify right side
    633.50x = 1,288,225
  5. Step 5: Solve for x
    x = 1,288,225/633.50
  6. Step 6: Final answer
    x = 2,033.50

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Why These Related Problems?

These problems maintain the same ratio (1.79) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.