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Finding the Third Proportional to 4,520 and 10,015

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Solution

The third proportional to 4,520 and 10,015 is: 22,190.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,520 : 10,015 = 10,015 : x
  2. Step 2: Convert to fraction form
    4,520/10,015 = 10,015/x
  3. Step 3: Cross multiply
    4,520x = 10,015 × 10,015
  4. Step 4: Simplify right side
    4,520x = 100,300,225
  5. Step 5: Solve for x
    x = 100,300,225/4,520
  6. Step 6: Final answer
    x = 22,190.32

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Why These Related Problems?

These problems maintain the same ratio (2.22) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.