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Finding the Third Proportional to 442.75 and 947

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Solution

The third proportional to 442.75 and 947 is: 2,025.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    442.75 : 947 = 947 : x
  2. Step 2: Convert to fraction form
    442.75/947 = 947/x
  3. Step 3: Cross multiply
    442.75x = 947 × 947
  4. Step 4: Simplify right side
    442.75x = 896,809
  5. Step 5: Solve for x
    x = 896,809/442.75
  6. Step 6: Final answer
    x = 2,025.54

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.