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Finding the Third Proportional to 4,668.26 and 9,966.80

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Solution

The third proportional to 4,668.26 and 9,966.80 is: 21,279.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,668.26 : 9,966.80 = 9,966.80 : x
  2. Step 2: Convert to fraction form
    4,668.26/9,966.80 = 9,966.80/x
  3. Step 3: Cross multiply
    4,668.26x = 9,966.80 × 9,966.80
  4. Step 4: Simplify right side
    4,668.26x = 99,337,039.95
  5. Step 5: Solve for x
    x = 99,337,039.95/4,668.26
  6. Step 6: Final answer
    x = 21,279.25

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.