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Finding the Third Proportional to 7,168 and 12,210

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Solution

The third proportional to 7,168 and 12,210 is: 20,798.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,168 : 12,210 = 12,210 : x
  2. Step 2: Convert to fraction form
    7,168/12,210 = 12,210/x
  3. Step 3: Cross multiply
    7,168x = 12,210 × 12,210
  4. Step 4: Simplify right side
    7,168x = 149,084,100
  5. Step 5: Solve for x
    x = 149,084,100/7,168
  6. Step 6: Final answer
    x = 20,798.56

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These problems maintain the same ratio (1.70) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.