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Finding the Third Proportional to 16,405 and 24,880

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Solution

The third proportional to 16,405 and 24,880 is: 37,733.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,405 : 24,880 = 24,880 : x
  2. Step 2: Convert to fraction form
    16,405/24,880 = 24,880/x
  3. Step 3: Cross multiply
    16,405x = 24,880 × 24,880
  4. Step 4: Simplify right side
    16,405x = 619,014,400
  5. Step 5: Solve for x
    x = 619,014,400/16,405
  6. Step 6: Final answer
    x = 37,733.28

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.