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Finding the Third Proportional to 295 and 407.25

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Solution

The third proportional to 295 and 407.25 is: 562.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    295 : 407.25 = 407.25 : x
  2. Step 2: Convert to fraction form
    295/407.25 = 407.25/x
  3. Step 3: Cross multiply
    295x = 407.25 × 407.25
  4. Step 4: Simplify right side
    295x = 165,852.56
  5. Step 5: Solve for x
    x = 165,852.56/295
  6. Step 6: Final answer
    x = 562.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.