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Finding the Third Proportional to 214.50 and 325.50

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Solution

The third proportional to 214.50 and 325.50 is: 493.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    214.50 : 325.50 = 325.50 : x
  2. Step 2: Convert to fraction form
    214.50/325.50 = 325.50/x
  3. Step 3: Cross multiply
    214.50x = 325.50 × 325.50
  4. Step 4: Simplify right side
    214.50x = 105,950.25
  5. Step 5: Solve for x
    x = 105,950.25/214.50
  6. Step 6: Final answer
    x = 493.94

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.