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Finding the Third Proportional to 5,720 and 9,168

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Solution

The third proportional to 5,720 and 9,168 is: 14,694.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,720 : 9,168 = 9,168 : x
  2. Step 2: Convert to fraction form
    5,720/9,168 = 9,168/x
  3. Step 3: Cross multiply
    5,720x = 9,168 × 9,168
  4. Step 4: Simplify right side
    5,720x = 84,052,224
  5. Step 5: Solve for x
    x = 84,052,224/5,720
  6. Step 6: Final answer
    x = 14,694.44

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Why These Related Problems?

These problems maintain the same ratio (1.60) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.