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Finding the Third Proportional to 9,537.75 and 12,879

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Solution

The third proportional to 9,537.75 and 12,879 is: 17,390.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,537.75 : 12,879 = 12,879 : x
  2. Step 2: Convert to fraction form
    9,537.75/12,879 = 12,879/x
  3. Step 3: Cross multiply
    9,537.75x = 12,879 × 12,879
  4. Step 4: Simplify right side
    9,537.75x = 165,868,641
  5. Step 5: Solve for x
    x = 165,868,641/9,537.75
  6. Step 6: Final answer
    x = 17,390.75

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Why These Related Problems?

These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.