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Finding the Third Proportional to 9,155.25 and 13,775.63

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Solution

The third proportional to 9,155.25 and 13,775.63 is: 20,727.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,155.25 : 13,775.63 = 13,775.63 : x
  2. Step 2: Convert to fraction form
    9,155.25/13,775.63 = 13,775.63/x
  3. Step 3: Cross multiply
    9,155.25x = 13,775.63 × 13,775.63
  4. Step 4: Simplify right side
    9,155.25x = 189,767,844.14
  5. Step 5: Solve for x
    x = 189,767,844.14/9,155.25
  6. Step 6: Final answer
    x = 20,727.76

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.