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Finding the Third Proportional to 243.75 and 541.50

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Solution

The third proportional to 243.75 and 541.50 is: 1,202.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    243.75 : 541.50 = 541.50 : x
  2. Step 2: Convert to fraction form
    243.75/541.50 = 541.50/x
  3. Step 3: Cross multiply
    243.75x = 541.50 × 541.50
  4. Step 4: Simplify right side
    243.75x = 293,222.25
  5. Step 5: Solve for x
    x = 293,222.25/243.75
  6. Step 6: Final answer
    x = 1,202.96

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Why These Related Problems?

These problems maintain the same ratio (2.22) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.