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Finding the Third Proportional to 45,748.50 and 66,538

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Solution

The third proportional to 45,748.50 and 66,538 is: 96,774.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,748.50 : 66,538 = 66,538 : x
  2. Step 2: Convert to fraction form
    45,748.50/66,538 = 66,538/x
  3. Step 3: Cross multiply
    45,748.50x = 66,538 × 66,538
  4. Step 4: Simplify right side
    45,748.50x = 4,427,305,444
  5. Step 5: Solve for x
    x = 4,427,305,444/45,748.50
  6. Step 6: Final answer
    x = 96,774.88

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Why These Related Problems?

These problems maintain the same ratio (1.45) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.