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Finding the Third Proportional to 19,988 and 24,200

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Solution

The third proportional to 19,988 and 24,200 is: 29,299.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,988 : 24,200 = 24,200 : x
  2. Step 2: Convert to fraction form
    19,988/24,200 = 24,200/x
  3. Step 3: Cross multiply
    19,988x = 24,200 × 24,200
  4. Step 4: Simplify right side
    19,988x = 585,640,000
  5. Step 5: Solve for x
    x = 585,640,000/19,988
  6. Step 6: Final answer
    x = 29,299.58

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Why These Related Problems?

These problems maintain the same ratio (1.21) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.