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Finding the Third Proportional to 6,156 and 6,669

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Solution

The third proportional to 6,156 and 6,669 is: 7,224.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,156 : 6,669 = 6,669 : x
  2. Step 2: Convert to fraction form
    6,156/6,669 = 6,669/x
  3. Step 3: Cross multiply
    6,156x = 6,669 × 6,669
  4. Step 4: Simplify right side
    6,156x = 44,475,561
  5. Step 5: Solve for x
    x = 44,475,561/6,156
  6. Step 6: Final answer
    x = 7,224.75

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Why These Related Problems?

These problems maintain the same ratio (1.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.