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Finding the Fourth Proportional to 65,646.88, 90,591.44 and 37,351.92

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Solution

The fourth proportional to 65,646.88, 90,591.44 and 37,351.92 is: 51,544.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,646.88 : 90,591.44 = 37,351.92 : x
  2. Step 2: Convert to fraction form
    65,646.88/90,591.44 = 37,351.92/x
  3. Step 3: Cross multiply
    65,646.88x = 90,591.44 × 37,351.92
  4. Step 4: Simplify right side
    65,646.88x = 3,383,764,219.56
  5. Step 5: Solve for x
    x = 3,383,764,219.56/65,646.88
  6. Step 6: Final answer
    x = 51,544.94

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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.