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Finding the Third Proportional to 515.50 and 737

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Solution

The third proportional to 515.50 and 737 is: 1,053.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    515.50 : 737 = 737 : x
  2. Step 2: Convert to fraction form
    515.50/737 = 737/x
  3. Step 3: Cross multiply
    515.50x = 737 × 737
  4. Step 4: Simplify right side
    515.50x = 543,169
  5. Step 5: Solve for x
    x = 543,169/515.50
  6. Step 6: Final answer
    x = 1,053.67

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.