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Finding the Third Proportional to 2,765 and 6,129

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Solution

The third proportional to 2,765 and 6,129 is: 13,585.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,765 : 6,129 = 6,129 : x
  2. Step 2: Convert to fraction form
    2,765/6,129 = 6,129/x
  3. Step 3: Cross multiply
    2,765x = 6,129 × 6,129
  4. Step 4: Simplify right side
    2,765x = 37,564,641
  5. Step 5: Solve for x
    x = 37,564,641/2,765
  6. Step 6: Final answer
    x = 13,585.77

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Why These Related Problems?

These problems maintain the same ratio (2.22) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.