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Finding the Third Proportional to 4,988 and 11,810

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Solution

The third proportional to 4,988 and 11,810 is: 27,962.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,988 : 11,810 = 11,810 : x
  2. Step 2: Convert to fraction form
    4,988/11,810 = 11,810/x
  3. Step 3: Cross multiply
    4,988x = 11,810 × 11,810
  4. Step 4: Simplify right side
    4,988x = 139,476,100
  5. Step 5: Solve for x
    x = 139,476,100/4,988
  6. Step 6: Final answer
    x = 27,962.33

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Why These Related Problems?

These problems maintain the same ratio (2.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.