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Finding the Third Proportional to 5,517 and 7,516.50

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Solution

The third proportional to 5,517 and 7,516.50 is: 10,240.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,517 : 7,516.50 = 7,516.50 : x
  2. Step 2: Convert to fraction form
    5,517/7,516.50 = 7,516.50/x
  3. Step 3: Cross multiply
    5,517x = 7,516.50 × 7,516.50
  4. Step 4: Simplify right side
    5,517x = 56,497,772.25
  5. Step 5: Solve for x
    x = 56,497,772.25/5,517
  6. Step 6: Final answer
    x = 10,240.67

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Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.