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Finding the Third Proportional to 1,536 and 3,200

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Solution

The third proportional to 1,536 and 3,200 is: 6,666.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,536 : 3,200 = 3,200 : x
  2. Step 2: Convert to fraction form
    1,536/3,200 = 3,200/x
  3. Step 3: Cross multiply
    1,536x = 3,200 × 3,200
  4. Step 4: Simplify right side
    1,536x = 10,240,000
  5. Step 5: Solve for x
    x = 10,240,000/1,536
  6. Step 6: Final answer
    x = 6,666.67

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Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.