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Finding the Third Proportional to 18,838.13 and 28,500.75

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Solution

The third proportional to 18,838.13 and 28,500.75 is: 43,119.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,838.13 : 28,500.75 = 28,500.75 : x
  2. Step 2: Convert to fraction form
    18,838.13/28,500.75 = 28,500.75/x
  3. Step 3: Cross multiply
    18,838.13x = 28,500.75 × 28,500.75
  4. Step 4: Simplify right side
    18,838.13x = 812,292,750.56
  5. Step 5: Solve for x
    x = 812,292,750.56/18,838.13
  6. Step 6: Final answer
    x = 43,119.62

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.