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Finding the Third Proportional to 9,228.75 and 21,666

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Solution

The third proportional to 9,228.75 and 21,666 is: 50,864.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,228.75 : 21,666 = 21,666 : x
  2. Step 2: Convert to fraction form
    9,228.75/21,666 = 21,666/x
  3. Step 3: Cross multiply
    9,228.75x = 21,666 × 21,666
  4. Step 4: Simplify right side
    9,228.75x = 469,415,556
  5. Step 5: Solve for x
    x = 469,415,556/9,228.75
  6. Step 6: Final answer
    x = 50,864.48

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Why These Related Problems?

These problems maintain the same ratio (2.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.