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Finding the Third Proportional to 488 and 1,125

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Solution

The third proportional to 488 and 1,125 is: 2,593.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    488 : 1,125 = 1,125 : x
  2. Step 2: Convert to fraction form
    488/1,125 = 1,125/x
  3. Step 3: Cross multiply
    488x = 1,125 × 1,125
  4. Step 4: Simplify right side
    488x = 1,265,625
  5. Step 5: Solve for x
    x = 1,265,625/488
  6. Step 6: Final answer
    x = 2,593.49

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Why These Related Problems?

These problems maintain the same ratio (2.31) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.