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Finding the Third Proportional to 9,491 and 14,158.75

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Solution

The third proportional to 9,491 and 14,158.75 is: 21,122.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,491 : 14,158.75 = 14,158.75 : x
  2. Step 2: Convert to fraction form
    9,491/14,158.75 = 14,158.75/x
  3. Step 3: Cross multiply
    9,491x = 14,158.75 × 14,158.75
  4. Step 4: Simplify right side
    9,491x = 200,470,201.56
  5. Step 5: Solve for x
    x = 200,470,201.56/9,491
  6. Step 6: Final answer
    x = 21,122.14

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.