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Finding the Third Proportional to 233.75 and 521.50

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Solution

The third proportional to 233.75 and 521.50 is: 1,163.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    233.75 : 521.50 = 521.50 : x
  2. Step 2: Convert to fraction form
    233.75/521.50 = 521.50/x
  3. Step 3: Cross multiply
    233.75x = 521.50 × 521.50
  4. Step 4: Simplify right side
    233.75x = 271,962.25
  5. Step 5: Solve for x
    x = 271,962.25/233.75
  6. Step 6: Final answer
    x = 1,163.47

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Why These Related Problems?

These problems maintain the same ratio (2.23) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.