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Finding the Third Proportional to 7,122.94 and 9,606.09

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Solution

The third proportional to 7,122.94 and 9,606.09 is: 12,954.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,122.94 : 9,606.09 = 9,606.09 : x
  2. Step 2: Convert to fraction form
    7,122.94/9,606.09 = 9,606.09/x
  3. Step 3: Cross multiply
    7,122.94x = 9,606.09 × 9,606.09
  4. Step 4: Simplify right side
    7,122.94x = 92,277,037.13
  5. Step 5: Solve for x
    x = 92,277,037.13/7,122.94
  6. Step 6: Final answer
    x = 12,954.91

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Why These Related Problems?

These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.