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Finding the Third Proportional to 1,112 and 2,488

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Solution

The third proportional to 1,112 and 2,488 is: 5,566.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,112 : 2,488 = 2,488 : x
  2. Step 2: Convert to fraction form
    1,112/2,488 = 2,488/x
  3. Step 3: Cross multiply
    1,112x = 2,488 × 2,488
  4. Step 4: Simplify right side
    1,112x = 6,190,144
  5. Step 5: Solve for x
    x = 6,190,144/1,112
  6. Step 6: Final answer
    x = 5,566.68

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Why These Related Problems?

These problems maintain the same ratio (2.24) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.