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Finding the Third Proportional to 6,974 and 8,078

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Solution

The third proportional to 6,974 and 8,078 is: 9,356.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,974 : 8,078 = 8,078 : x
  2. Step 2: Convert to fraction form
    6,974/8,078 = 8,078/x
  3. Step 3: Cross multiply
    6,974x = 8,078 × 8,078
  4. Step 4: Simplify right side
    6,974x = 65,254,084
  5. Step 5: Solve for x
    x = 65,254,084/6,974
  6. Step 6: Final answer
    x = 9,356.77

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Why These Related Problems?

These problems maintain the same ratio (1.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.