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Finding the Third Proportional to 9,945 and 14,625

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Solution

The third proportional to 9,945 and 14,625 is: 21,507.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,945 : 14,625 = 14,625 : x
  2. Step 2: Convert to fraction form
    9,945/14,625 = 14,625/x
  3. Step 3: Cross multiply
    9,945x = 14,625 × 14,625
  4. Step 4: Simplify right side
    9,945x = 213,890,625
  5. Step 5: Solve for x
    x = 213,890,625/9,945
  6. Step 6: Final answer
    x = 21,507.35

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.