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Finding the Third Proportional to 213.75 and 468

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Solution

The third proportional to 213.75 and 468 is: 1,024.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    213.75 : 468 = 468 : x
  2. Step 2: Convert to fraction form
    213.75/468 = 468/x
  3. Step 3: Cross multiply
    213.75x = 468 × 468
  4. Step 4: Simplify right side
    213.75x = 219,024
  5. Step 5: Solve for x
    x = 219,024/213.75
  6. Step 6: Final answer
    x = 1,024.67

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.