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Finding the Third Proportional to 4,961.80 and 10,643.12

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Solution

The third proportional to 4,961.80 and 10,643.12 is: 22,829.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,961.80 : 10,643.12 = 10,643.12 : x
  2. Step 2: Convert to fraction form
    4,961.80/10,643.12 = 10,643.12/x
  3. Step 3: Cross multiply
    4,961.80x = 10,643.12 × 10,643.12
  4. Step 4: Simplify right side
    4,961.80x = 113,275,901.89
  5. Step 5: Solve for x
    x = 113,275,901.89/4,961.80
  6. Step 6: Final answer
    x = 22,829.58

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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.