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Finding the Third Proportional to 5,178 and 6,946

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Solution

The third proportional to 5,178 and 6,946 is: 9,317.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,178 : 6,946 = 6,946 : x
  2. Step 2: Convert to fraction form
    5,178/6,946 = 6,946/x
  3. Step 3: Cross multiply
    5,178x = 6,946 × 6,946
  4. Step 4: Simplify right side
    5,178x = 48,246,916
  5. Step 5: Solve for x
    x = 48,246,916/5,178
  6. Step 6: Final answer
    x = 9,317.67

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Why These Related Problems?

These problems maintain the same ratio (1.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.