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Finding the Third Proportional to 4,405.50 and 9,454

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Solution

The third proportional to 4,405.50 and 9,454 is: 20,287.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,405.50 : 9,454 = 9,454 : x
  2. Step 2: Convert to fraction form
    4,405.50/9,454 = 9,454/x
  3. Step 3: Cross multiply
    4,405.50x = 9,454 × 9,454
  4. Step 4: Simplify right side
    4,405.50x = 89,378,116
  5. Step 5: Solve for x
    x = 89,378,116/4,405.50
  6. Step 6: Final answer
    x = 20,287.85

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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.