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Finding the Third Proportional to 4,078 and 8,948

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Solution

The third proportional to 4,078 and 8,948 is: 19,633.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,078 : 8,948 = 8,948 : x
  2. Step 2: Convert to fraction form
    4,078/8,948 = 8,948/x
  3. Step 3: Cross multiply
    4,078x = 8,948 × 8,948
  4. Step 4: Simplify right side
    4,078x = 80,066,704
  5. Step 5: Solve for x
    x = 80,066,704/4,078
  6. Step 6: Final answer
    x = 19,633.82

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.