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Finding the Third Proportional to 692.53 and 934.31

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Solution

The third proportional to 692.53 and 934.31 is: 1,260.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    692.53 : 934.31 = 934.31 : x
  2. Step 2: Convert to fraction form
    692.53/934.31 = 934.31/x
  3. Step 3: Cross multiply
    692.53x = 934.31 × 934.31
  4. Step 4: Simplify right side
    692.53x = 872,939.85
  5. Step 5: Solve for x
    x = 872,939.85/692.53
  6. Step 6: Final answer
    x = 1,260.51

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Why These Related Problems?

These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.