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Finding the Third Proportional to 10,480 and 16,424

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Solution

The third proportional to 10,480 and 16,424 is: 25,739.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,480 : 16,424 = 16,424 : x
  2. Step 2: Convert to fraction form
    10,480/16,424 = 16,424/x
  3. Step 3: Cross multiply
    10,480x = 16,424 × 16,424
  4. Step 4: Simplify right side
    10,480x = 269,747,776
  5. Step 5: Solve for x
    x = 269,747,776/10,480
  6. Step 6: Final answer
    x = 25,739.29

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.