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Finding the Third Proportional to 4,725 and 9,963

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Solution

The third proportional to 4,725 and 9,963 is: 21,007.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,725 : 9,963 = 9,963 : x
  2. Step 2: Convert to fraction form
    4,725/9,963 = 9,963/x
  3. Step 3: Cross multiply
    4,725x = 9,963 × 9,963
  4. Step 4: Simplify right side
    4,725x = 99,261,369
  5. Step 5: Solve for x
    x = 99,261,369/4,725
  6. Step 6: Final answer
    x = 21,007.70

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Why These Related Problems?

These problems maintain the same ratio (2.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.