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Finding the Third Proportional to 18,543 and 28,462.50

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Solution

The third proportional to 18,543 and 28,462.50 is: 43,688.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,543 : 28,462.50 = 28,462.50 : x
  2. Step 2: Convert to fraction form
    18,543/28,462.50 = 28,462.50/x
  3. Step 3: Cross multiply
    18,543x = 28,462.50 × 28,462.50
  4. Step 4: Simplify right side
    18,543x = 810,113,906.25
  5. Step 5: Solve for x
    x = 810,113,906.25/18,543
  6. Step 6: Final answer
    x = 43,688.39

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.