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Finding the Third Proportional to 9,356 and 20,078

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Solution

The third proportional to 9,356 and 20,078 is: 43,087.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,356 : 20,078 = 20,078 : x
  2. Step 2: Convert to fraction form
    9,356/20,078 = 20,078/x
  3. Step 3: Cross multiply
    9,356x = 20,078 × 20,078
  4. Step 4: Simplify right side
    9,356x = 403,126,084
  5. Step 5: Solve for x
    x = 403,126,084/9,356
  6. Step 6: Final answer
    x = 43,087.44

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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.