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Finding the Third Proportional to 4,812 and 6,712

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Solution

The third proportional to 4,812 and 6,712 is: 9,362.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,812 : 6,712 = 6,712 : x
  2. Step 2: Convert to fraction form
    4,812/6,712 = 6,712/x
  3. Step 3: Cross multiply
    4,812x = 6,712 × 6,712
  4. Step 4: Simplify right side
    4,812x = 45,050,944
  5. Step 5: Solve for x
    x = 45,050,944/4,812
  6. Step 6: Final answer
    x = 9,362.21

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.