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Finding the Third Proportional to 2,670 and 4,712

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Solution

The third proportional to 2,670 and 4,712 is: 8,315.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,670 : 4,712 = 4,712 : x
  2. Step 2: Convert to fraction form
    2,670/4,712 = 4,712/x
  3. Step 3: Cross multiply
    2,670x = 4,712 × 4,712
  4. Step 4: Simplify right side
    2,670x = 22,202,944
  5. Step 5: Solve for x
    x = 22,202,944/2,670
  6. Step 6: Final answer
    x = 8,315.71

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Why These Related Problems?

These problems maintain the same ratio (1.76) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.