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Finding the Third Proportional to 15,393 and 33,558

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Solution

The third proportional to 15,393 and 33,558 is: 73,159.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,393 : 33,558 = 33,558 : x
  2. Step 2: Convert to fraction form
    15,393/33,558 = 33,558/x
  3. Step 3: Cross multiply
    15,393x = 33,558 × 33,558
  4. Step 4: Simplify right side
    15,393x = 1,126,139,364
  5. Step 5: Solve for x
    x = 1,126,139,364/15,393
  6. Step 6: Final answer
    x = 73,159.19

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.