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Finding the Third Proportional to 247.50 and 529

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Solution

The third proportional to 247.50 and 529 is: 1,130.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    247.50 : 529 = 529 : x
  2. Step 2: Convert to fraction form
    247.50/529 = 529/x
  3. Step 3: Cross multiply
    247.50x = 529 × 529
  4. Step 4: Simplify right side
    247.50x = 279,841
  5. Step 5: Solve for x
    x = 279,841/247.50
  6. Step 6: Final answer
    x = 1,130.67

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.