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Finding the Third Proportional to 15,710 and 33,880

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Solution

The third proportional to 15,710 and 33,880 is: 73,065.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,710 : 33,880 = 33,880 : x
  2. Step 2: Convert to fraction form
    15,710/33,880 = 33,880/x
  3. Step 3: Cross multiply
    15,710x = 33,880 × 33,880
  4. Step 4: Simplify right side
    15,710x = 1,147,854,400
  5. Step 5: Solve for x
    x = 1,147,854,400/15,710
  6. Step 6: Final answer
    x = 73,065.21

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.