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Finding the Third Proportional to 112.64 and 248.06

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Solution

The third proportional to 112.64 and 248.06 is: 546.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    112.64 : 248.06 = 248.06 : x
  2. Step 2: Convert to fraction form
    112.64/248.06 = 248.06/x
  3. Step 3: Cross multiply
    112.64x = 248.06 × 248.06
  4. Step 4: Simplify right side
    112.64x = 61,535.00
  5. Step 5: Solve for x
    x = 61,535.00/112.64
  6. Step 6: Final answer
    x = 546.29

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.