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Finding the Third Proportional to 4,520 and 7,084

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Solution

The third proportional to 4,520 and 7,084 is: 11,102.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,520 : 7,084 = 7,084 : x
  2. Step 2: Convert to fraction form
    4,520/7,084 = 7,084/x
  3. Step 3: Cross multiply
    4,520x = 7,084 × 7,084
  4. Step 4: Simplify right side
    4,520x = 50,183,056
  5. Step 5: Solve for x
    x = 50,183,056/4,520
  6. Step 6: Final answer
    x = 11,102.45

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.