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Finding the Third Proportional to 9,963 and 15,855.75

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Solution

The third proportional to 9,963 and 15,855.75 is: 25,233.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,963 : 15,855.75 = 15,855.75 : x
  2. Step 2: Convert to fraction form
    9,963/15,855.75 = 15,855.75/x
  3. Step 3: Cross multiply
    9,963x = 15,855.75 × 15,855.75
  4. Step 4: Simplify right side
    9,963x = 251,404,808.06
  5. Step 5: Solve for x
    x = 251,404,808.06/9,963
  6. Step 6: Final answer
    x = 25,233.85

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.