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Finding the Third Proportional to 517.22 and 1,112.06

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Solution

The third proportional to 517.22 and 1,112.06 is: 2,391.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    517.22 : 1,112.06 = 1,112.06 : x
  2. Step 2: Convert to fraction form
    517.22/1,112.06 = 1,112.06/x
  3. Step 3: Cross multiply
    517.22x = 1,112.06 × 1,112.06
  4. Step 4: Simplify right side
    517.22x = 1,236,683.00
  5. Step 5: Solve for x
    x = 1,236,683.00/517.22
  6. Step 6: Final answer
    x = 2,391.03

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.