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Finding the Third Proportional to 6,434 and 7,034

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Solution

The third proportional to 6,434 and 7,034 is: 7,689.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,434 : 7,034 = 7,034 : x
  2. Step 2: Convert to fraction form
    6,434/7,034 = 7,034/x
  3. Step 3: Cross multiply
    6,434x = 7,034 × 7,034
  4. Step 4: Simplify right side
    6,434x = 49,477,156
  5. Step 5: Solve for x
    x = 49,477,156/6,434
  6. Step 6: Final answer
    x = 7,689.95

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Why These Related Problems?

These problems maintain the same ratio (1.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.