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Finding the Third Proportional to 18,150.75 and 28,981.13

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Solution

The third proportional to 18,150.75 and 28,981.13 is: 46,273.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,150.75 : 28,981.13 = 28,981.13 : x
  2. Step 2: Convert to fraction form
    18,150.75/28,981.13 = 28,981.13/x
  3. Step 3: Cross multiply
    18,150.75x = 28,981.13 × 28,981.13
  4. Step 4: Simplify right side
    18,150.75x = 839,905,606.27
  5. Step 5: Solve for x
    x = 839,905,606.27/18,150.75
  6. Step 6: Final answer
    x = 46,273.88

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Why These Related Problems?

These problems maintain the same ratio (1.60) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.