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Finding the Third Proportional to 116 and 259.25

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Solution

The third proportional to 116 and 259.25 is: 579.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    116 : 259.25 = 259.25 : x
  2. Step 2: Convert to fraction form
    116/259.25 = 259.25/x
  3. Step 3: Cross multiply
    116x = 259.25 × 259.25
  4. Step 4: Simplify right side
    116x = 67,210.56
  5. Step 5: Solve for x
    x = 67,210.56/116
  6. Step 6: Final answer
    x = 579.40

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Why These Related Problems?

These problems maintain the same ratio (2.23) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.