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Finding the Third Proportional to 53,872 and 115,681

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Solution

The third proportional to 53,872 and 115,681 is: 248,405.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,872 : 115,681 = 115,681 : x
  2. Step 2: Convert to fraction form
    53,872/115,681 = 115,681/x
  3. Step 3: Cross multiply
    53,872x = 115,681 × 115,681
  4. Step 4: Simplify right side
    53,872x = 13,382,093,761
  5. Step 5: Solve for x
    x = 13,382,093,761/53,872
  6. Step 6: Final answer
    x = 248,405.36

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.