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Finding the Third Proportional to 9,660.75 and 20,359.13

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Solution

The third proportional to 9,660.75 and 20,359.13 is: 42,904.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,660.75 : 20,359.13 = 20,359.13 : x
  2. Step 2: Convert to fraction form
    9,660.75/20,359.13 = 20,359.13/x
  3. Step 3: Cross multiply
    9,660.75x = 20,359.13 × 20,359.13
  4. Step 4: Simplify right side
    9,660.75x = 414,493,970.77
  5. Step 5: Solve for x
    x = 414,493,970.77/9,660.75
  6. Step 6: Final answer
    x = 42,904.95

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Why These Related Problems?

These problems maintain the same ratio (2.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.