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Finding the Third Proportional to 126 and 188.50

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Solution

The third proportional to 126 and 188.50 is: 282.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    126 : 188.50 = 188.50 : x
  2. Step 2: Convert to fraction form
    126/188.50 = 188.50/x
  3. Step 3: Cross multiply
    126x = 188.50 × 188.50
  4. Step 4: Simplify right side
    126x = 35,532.25
  5. Step 5: Solve for x
    x = 35,532.25/126
  6. Step 6: Final answer
    x = 282.00

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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.