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Finding the Third Proportional to 4,820 and 5,236

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Solution

The third proportional to 4,820 and 5,236 is: 5,687.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,820 : 5,236 = 5,236 : x
  2. Step 2: Convert to fraction form
    4,820/5,236 = 5,236/x
  3. Step 3: Cross multiply
    4,820x = 5,236 × 5,236
  4. Step 4: Simplify right side
    4,820x = 27,415,696
  5. Step 5: Solve for x
    x = 27,415,696/4,820
  6. Step 6: Final answer
    x = 5,687.90

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Why These Related Problems?

These problems maintain the same ratio (1.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.