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Finding the Third Proportional to 6,921 and 14,826.75

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Solution

The third proportional to 6,921 and 14,826.75 is: 31,763.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,921 : 14,826.75 = 14,826.75 : x
  2. Step 2: Convert to fraction form
    6,921/14,826.75 = 14,826.75/x
  3. Step 3: Cross multiply
    6,921x = 14,826.75 × 14,826.75
  4. Step 4: Simplify right side
    6,921x = 219,832,515.56
  5. Step 5: Solve for x
    x = 219,832,515.56/6,921
  6. Step 6: Final answer
    x = 31,763.11

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.