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Finding the Third Proportional to 4,546.13 and 9,988.31

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Solution

The third proportional to 4,546.13 and 9,988.31 is: 21,945.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,546.13 : 9,988.31 = 9,988.31 : x
  2. Step 2: Convert to fraction form
    4,546.13/9,988.31 = 9,988.31/x
  3. Step 3: Cross multiply
    4,546.13x = 9,988.31 × 9,988.31
  4. Step 4: Simplify right side
    4,546.13x = 99,766,386.60
  5. Step 5: Solve for x
    x = 99,766,386.60/4,546.13
  6. Step 6: Final answer
    x = 21,945.37

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.