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Finding the Third Proportional to 243.75 and 591.75

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Solution

The third proportional to 243.75 and 591.75 is: 1,436.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    243.75 : 591.75 = 591.75 : x
  2. Step 2: Convert to fraction form
    243.75/591.75 = 591.75/x
  3. Step 3: Cross multiply
    243.75x = 591.75 × 591.75
  4. Step 4: Simplify right side
    243.75x = 350,168.06
  5. Step 5: Solve for x
    x = 350,168.06/243.75
  6. Step 6: Final answer
    x = 1,436.59

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Why These Related Problems?

These problems maintain the same ratio (2.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.