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Finding the Fourth Proportional to 73,481.75, 101,404.86 and 39,947.75

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Solution

The fourth proportional to 73,481.75, 101,404.86 and 39,947.75 is: 55,127.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,481.75 : 101,404.86 = 39,947.75 : x
  2. Step 2: Convert to fraction form
    73,481.75/101,404.86 = 39,947.75/x
  3. Step 3: Cross multiply
    73,481.75x = 101,404.86 × 39,947.75
  4. Step 4: Simplify right side
    73,481.75x = 4,050,895,996.07
  5. Step 5: Solve for x
    x = 4,050,895,996.07/73,481.75
  6. Step 6: Final answer
    x = 55,127.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.