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Finding the Third Proportional to 4,226 and 9,090

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Solution

The third proportional to 4,226 and 9,090 is: 19,552.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,226 : 9,090 = 9,090 : x
  2. Step 2: Convert to fraction form
    4,226/9,090 = 9,090/x
  3. Step 3: Cross multiply
    4,226x = 9,090 × 9,090
  4. Step 4: Simplify right side
    4,226x = 82,628,100
  5. Step 5: Solve for x
    x = 82,628,100/4,226
  6. Step 6: Final answer
    x = 19,552.32

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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.