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Finding the Third Proportional to 18,660.75 and 28,892.63

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Solution

The third proportional to 18,660.75 and 28,892.63 is: 44,734.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,660.75 : 28,892.63 = 28,892.63 : x
  2. Step 2: Convert to fraction form
    18,660.75/28,892.63 = 28,892.63/x
  3. Step 3: Cross multiply
    18,660.75x = 28,892.63 × 28,892.63
  4. Step 4: Simplify right side
    18,660.75x = 834,783,779.39
  5. Step 5: Solve for x
    x = 834,783,779.39/18,660.75
  6. Step 6: Final answer
    x = 44,734.74

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.