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Finding the Third Proportional to 657 and 1,252

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Solution

The third proportional to 657 and 1,252 is: 2,385.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    657 : 1,252 = 1,252 : x
  2. Step 2: Convert to fraction form
    657/1,252 = 1,252/x
  3. Step 3: Cross multiply
    657x = 1,252 × 1,252
  4. Step 4: Simplify right side
    657x = 1,567,504
  5. Step 5: Solve for x
    x = 1,567,504/657
  6. Step 6: Final answer
    x = 2,385.85

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These problems maintain the same ratio (1.91) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.