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Finding the Third Proportional to 18,155.25 and 25,000.88

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Solution

The third proportional to 18,155.25 and 25,000.88 is: 34,427.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,155.25 : 25,000.88 = 25,000.88 : x
  2. Step 2: Convert to fraction form
    18,155.25/25,000.88 = 25,000.88/x
  3. Step 3: Cross multiply
    18,155.25x = 25,000.88 × 25,000.88
  4. Step 4: Simplify right side
    18,155.25x = 625,043,750.77
  5. Step 5: Solve for x
    x = 625,043,750.77/18,155.25
  6. Step 6: Final answer
    x = 34,427.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.