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Finding the Third Proportional to 7,676.50 and 12,207

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Solution

The third proportional to 7,676.50 and 12,207 is: 19,411.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,676.50 : 12,207 = 12,207 : x
  2. Step 2: Convert to fraction form
    7,676.50/12,207 = 12,207/x
  3. Step 3: Cross multiply
    7,676.50x = 12,207 × 12,207
  4. Step 4: Simplify right side
    7,676.50x = 149,010,849
  5. Step 5: Solve for x
    x = 149,010,849/7,676.50
  6. Step 6: Final answer
    x = 19,411.30

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.