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Finding the Third Proportional to 9,860.75 and 21,225

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Solution

The third proportional to 9,860.75 and 21,225 is: 45,686.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,860.75 : 21,225 = 21,225 : x
  2. Step 2: Convert to fraction form
    9,860.75/21,225 = 21,225/x
  3. Step 3: Cross multiply
    9,860.75x = 21,225 × 21,225
  4. Step 4: Simplify right side
    9,860.75x = 450,500,625
  5. Step 5: Solve for x
    x = 450,500,625/9,860.75
  6. Step 6: Final answer
    x = 45,686.24

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.