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Finding the Third Proportional to 9,945 and 14,137.88

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Solution

The third proportional to 9,945 and 14,137.88 is: 20,098.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,945 : 14,137.88 = 14,137.88 : x
  2. Step 2: Convert to fraction form
    9,945/14,137.88 = 14,137.88/x
  3. Step 3: Cross multiply
    9,945x = 14,137.88 × 14,137.88
  4. Step 4: Simplify right side
    9,945x = 199,879,509.52
  5. Step 5: Solve for x
    x = 199,879,509.52/9,945
  6. Step 6: Final answer
    x = 20,098.49

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Why These Related Problems?

These problems maintain the same ratio (1.42) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.