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Finding the Third Proportional to 295.75 and 624.25

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Solution

The third proportional to 295.75 and 624.25 is: 1,317.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    295.75 : 624.25 = 624.25 : x
  2. Step 2: Convert to fraction form
    295.75/624.25 = 624.25/x
  3. Step 3: Cross multiply
    295.75x = 624.25 × 624.25
  4. Step 4: Simplify right side
    295.75x = 389,688.06
  5. Step 5: Solve for x
    x = 389,688.06/295.75
  6. Step 6: Final answer
    x = 1,317.63

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Why These Related Problems?

These problems maintain the same ratio (2.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.