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Finding the Third Proportional to 152.50 and 175

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Solution

The third proportional to 152.50 and 175 is: 200.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    152.50 : 175 = 175 : x
  2. Step 2: Convert to fraction form
    152.50/175 = 175/x
  3. Step 3: Cross multiply
    152.50x = 175 × 175
  4. Step 4: Simplify right side
    152.50x = 30,625
  5. Step 5: Solve for x
    x = 30,625/152.50
  6. Step 6: Final answer
    x = 200.82

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Why These Related Problems?

These problems maintain the same ratio (1.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.