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Finding the Third Proportional to 4,152 and 8,655

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Solution

The third proportional to 4,152 and 8,655 is: 18,041.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,152 : 8,655 = 8,655 : x
  2. Step 2: Convert to fraction form
    4,152/8,655 = 8,655/x
  3. Step 3: Cross multiply
    4,152x = 8,655 × 8,655
  4. Step 4: Simplify right side
    4,152x = 74,909,025
  5. Step 5: Solve for x
    x = 74,909,025/4,152
  6. Step 6: Final answer
    x = 18,041.67

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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.