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Finding the Third Proportional to 28,256 and 43,904

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Solution

The third proportional to 28,256 and 43,904 is: 68,217.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,256 : 43,904 = 43,904 : x
  2. Step 2: Convert to fraction form
    28,256/43,904 = 43,904/x
  3. Step 3: Cross multiply
    28,256x = 43,904 × 43,904
  4. Step 4: Simplify right side
    28,256x = 1,927,561,216
  5. Step 5: Solve for x
    x = 1,927,561,216/28,256
  6. Step 6: Final answer
    x = 68,217.77

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.