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Finding the Third Proportional to 3,340 and 4,748

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Solution

The third proportional to 3,340 and 4,748 is: 6,749.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,340 : 4,748 = 4,748 : x
  2. Step 2: Convert to fraction form
    3,340/4,748 = 4,748/x
  3. Step 3: Cross multiply
    3,340x = 4,748 × 4,748
  4. Step 4: Simplify right side
    3,340x = 22,543,504
  5. Step 5: Solve for x
    x = 22,543,504/3,340
  6. Step 6: Final answer
    x = 6,749.55

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Why These Related Problems?

These problems maintain the same ratio (1.42) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.