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Finding the Third Proportional to 4,745.25 and 9,966.38

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Solution

The third proportional to 4,745.25 and 9,966.38 is: 20,932.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,745.25 : 9,966.38 = 9,966.38 : x
  2. Step 2: Convert to fraction form
    4,745.25/9,966.38 = 9,966.38/x
  3. Step 3: Cross multiply
    4,745.25x = 9,966.38 × 9,966.38
  4. Step 4: Simplify right side
    4,745.25x = 99,328,630.64
  5. Step 5: Solve for x
    x = 99,328,630.64/4,745.25
  6. Step 6: Final answer
    x = 20,932.22

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Why These Related Problems?

These problems maintain the same ratio (2.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.