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Finding the Third Proportional to 11,405 and 24,988

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Solution

The third proportional to 11,405 and 24,988 is: 54,747.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,405 : 24,988 = 24,988 : x
  2. Step 2: Convert to fraction form
    11,405/24,988 = 24,988/x
  3. Step 3: Cross multiply
    11,405x = 24,988 × 24,988
  4. Step 4: Simplify right side
    11,405x = 624,400,144
  5. Step 5: Solve for x
    x = 624,400,144/11,405
  6. Step 6: Final answer
    x = 54,747.93

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.