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Finding the Third Proportional to 292 and 454.25

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Solution

The third proportional to 292 and 454.25 is: 706.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    292 : 454.25 = 454.25 : x
  2. Step 2: Convert to fraction form
    292/454.25 = 454.25/x
  3. Step 3: Cross multiply
    292x = 454.25 × 454.25
  4. Step 4: Simplify right side
    292x = 206,343.06
  5. Step 5: Solve for x
    x = 206,343.06/292
  6. Step 6: Final answer
    x = 706.65

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.