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Finding the Third Proportional to 3,312 and 5,880

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Solution

The third proportional to 3,312 and 5,880 is: 10,439.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,312 : 5,880 = 5,880 : x
  2. Step 2: Convert to fraction form
    3,312/5,880 = 5,880/x
  3. Step 3: Cross multiply
    3,312x = 5,880 × 5,880
  4. Step 4: Simplify right side
    3,312x = 34,574,400
  5. Step 5: Solve for x
    x = 34,574,400/3,312
  6. Step 6: Final answer
    x = 10,439.13

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Why These Related Problems?

These problems maintain the same ratio (1.78) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.