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Finding the Third Proportional to 4,355 and 9,400

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Solution

The third proportional to 4,355 and 9,400 is: 20,289.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,355 : 9,400 = 9,400 : x
  2. Step 2: Convert to fraction form
    4,355/9,400 = 9,400/x
  3. Step 3: Cross multiply
    4,355x = 9,400 × 9,400
  4. Step 4: Simplify right side
    4,355x = 88,360,000
  5. Step 5: Solve for x
    x = 88,360,000/4,355
  6. Step 6: Final answer
    x = 20,289.32

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These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.