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Finding the Third Proportional to 15,819.75 and 23,688

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Solution

The third proportional to 15,819.75 and 23,688 is: 35,469.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,819.75 : 23,688 = 23,688 : x
  2. Step 2: Convert to fraction form
    15,819.75/23,688 = 23,688/x
  3. Step 3: Cross multiply
    15,819.75x = 23,688 × 23,688
  4. Step 4: Simplify right side
    15,819.75x = 561,121,344
  5. Step 5: Solve for x
    x = 561,121,344/15,819.75
  6. Step 6: Final answer
    x = 35,469.67

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.