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Finding the Third Proportional to 5,620 and 8,947

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Solution

The third proportional to 5,620 and 8,947 is: 14,243.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,620 : 8,947 = 8,947 : x
  2. Step 2: Convert to fraction form
    5,620/8,947 = 8,947/x
  3. Step 3: Cross multiply
    5,620x = 8,947 × 8,947
  4. Step 4: Simplify right side
    5,620x = 80,048,809
  5. Step 5: Solve for x
    x = 80,048,809/5,620
  6. Step 6: Final answer
    x = 14,243.56

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.