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Finding the Third Proportional to 17,556.75 and 28,188

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Solution

The third proportional to 17,556.75 and 28,188 is: 45,256.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,556.75 : 28,188 = 28,188 : x
  2. Step 2: Convert to fraction form
    17,556.75/28,188 = 28,188/x
  3. Step 3: Cross multiply
    17,556.75x = 28,188 × 28,188
  4. Step 4: Simplify right side
    17,556.75x = 794,563,344
  5. Step 5: Solve for x
    x = 794,563,344/17,556.75
  6. Step 6: Final answer
    x = 45,256.86

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Why These Related Problems?

These problems maintain the same ratio (1.61) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.