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Finding the Third Proportional to 18,651.94 and 28,815.75

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Solution

The third proportional to 18,651.94 and 28,815.75 is: 44,518.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,651.94 : 28,815.75 = 28,815.75 : x
  2. Step 2: Convert to fraction form
    18,651.94/28,815.75 = 28,815.75/x
  3. Step 3: Cross multiply
    18,651.94x = 28,815.75 × 28,815.75
  4. Step 4: Simplify right side
    18,651.94x = 830,347,448.06
  5. Step 5: Solve for x
    x = 830,347,448.06/18,651.94
  6. Step 6: Final answer
    x = 44,518.03

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.