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Finding the Third Proportional to 13,433.50 and 20,373

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Solution

The third proportional to 13,433.50 and 20,373 is: 30,897.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,433.50 : 20,373 = 20,373 : x
  2. Step 2: Convert to fraction form
    13,433.50/20,373 = 20,373/x
  3. Step 3: Cross multiply
    13,433.50x = 20,373 × 20,373
  4. Step 4: Simplify right side
    13,433.50x = 415,059,129
  5. Step 5: Solve for x
    x = 415,059,129/13,433.50
  6. Step 6: Final answer
    x = 30,897.32

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.