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Finding the Third Proportional to 53,260 and 76,722

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Solution

The third proportional to 53,260 and 76,722 is: 110,519.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,260 : 76,722 = 76,722 : x
  2. Step 2: Convert to fraction form
    53,260/76,722 = 76,722/x
  3. Step 3: Cross multiply
    53,260x = 76,722 × 76,722
  4. Step 4: Simplify right side
    53,260x = 5,886,265,284
  5. Step 5: Solve for x
    x = 5,886,265,284/53,260
  6. Step 6: Final answer
    x = 110,519.44

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Why These Related Problems?

These problems maintain the same ratio (1.44) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.