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Finding the Third Proportional to 692.25 and 1,058.25

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Solution

The third proportional to 692.25 and 1,058.25 is: 1,617.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    692.25 : 1,058.25 = 1,058.25 : x
  2. Step 2: Convert to fraction form
    692.25/1,058.25 = 1,058.25/x
  3. Step 3: Cross multiply
    692.25x = 1,058.25 × 1,058.25
  4. Step 4: Simplify right side
    692.25x = 1,119,893.06
  5. Step 5: Solve for x
    x = 1,119,893.06/692.25
  6. Step 6: Final answer
    x = 1,617.76

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.