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Finding the Third Proportional to 192.25 and 288.50

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Solution

The third proportional to 192.25 and 288.50 is: 432.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    192.25 : 288.50 = 288.50 : x
  2. Step 2: Convert to fraction form
    192.25/288.50 = 288.50/x
  3. Step 3: Cross multiply
    192.25x = 288.50 × 288.50
  4. Step 4: Simplify right side
    192.25x = 83,232.25
  5. Step 5: Solve for x
    x = 83,232.25/192.25
  6. Step 6: Final answer
    x = 432.94

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.