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Finding the Third Proportional to 11,348 and 15,878

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Solution

The third proportional to 11,348 and 15,878 is: 22,216.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,348 : 15,878 = 15,878 : x
  2. Step 2: Convert to fraction form
    11,348/15,878 = 15,878/x
  3. Step 3: Cross multiply
    11,348x = 15,878 × 15,878
  4. Step 4: Simplify right side
    11,348x = 252,110,884
  5. Step 5: Solve for x
    x = 252,110,884/11,348
  6. Step 6: Final answer
    x = 22,216.33

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.