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Finding the Third Proportional to 18,937.13 and 28,039.50

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Solution

The third proportional to 18,937.13 and 28,039.50 is: 41,517.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,937.13 : 28,039.50 = 28,039.50 : x
  2. Step 2: Convert to fraction form
    18,937.13/28,039.50 = 28,039.50/x
  3. Step 3: Cross multiply
    18,937.13x = 28,039.50 × 28,039.50
  4. Step 4: Simplify right side
    18,937.13x = 786,213,560.25
  5. Step 5: Solve for x
    x = 786,213,560.25/18,937.13
  6. Step 6: Final answer
    x = 41,517.05

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Why These Related Problems?

These problems maintain the same ratio (1.48) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.