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Finding the Third Proportional to 6,434 and 9,719

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Solution

The third proportional to 6,434 and 9,719 is: 14,681.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,434 : 9,719 = 9,719 : x
  2. Step 2: Convert to fraction form
    6,434/9,719 = 9,719/x
  3. Step 3: Cross multiply
    6,434x = 9,719 × 9,719
  4. Step 4: Simplify right side
    6,434x = 94,458,961
  5. Step 5: Solve for x
    x = 94,458,961/6,434
  6. Step 6: Final answer
    x = 14,681.22

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.