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Finding the Third Proportional to 5,407 and 11,681

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Solution

The third proportional to 5,407 and 11,681 is: 25,235.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,407 : 11,681 = 11,681 : x
  2. Step 2: Convert to fraction form
    5,407/11,681 = 11,681/x
  3. Step 3: Cross multiply
    5,407x = 11,681 × 11,681
  4. Step 4: Simplify right side
    5,407x = 136,445,761
  5. Step 5: Solve for x
    x = 136,445,761/5,407
  6. Step 6: Final answer
    x = 25,235.02

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.