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Finding the Third Proportional to 13,189 and 28,556

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Solution

The third proportional to 13,189 and 28,556 is: 61,827.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,189 : 28,556 = 28,556 : x
  2. Step 2: Convert to fraction form
    13,189/28,556 = 28,556/x
  3. Step 3: Cross multiply
    13,189x = 28,556 × 28,556
  4. Step 4: Simplify right side
    13,189x = 815,445,136
  5. Step 5: Solve for x
    x = 815,445,136/13,189
  6. Step 6: Final answer
    x = 61,827.67

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.