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Finding the Fourth Proportional to 91,993.71, 137,991.08 and 27,952.48

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Solution

The fourth proportional to 91,993.71, 137,991.08 and 27,952.48 is: 41,928.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,993.71 : 137,991.08 = 27,952.48 : x
  2. Step 2: Convert to fraction form
    91,993.71/137,991.08 = 27,952.48/x
  3. Step 3: Cross multiply
    91,993.71x = 137,991.08 × 27,952.48
  4. Step 4: Simplify right side
    91,993.71x = 3,857,192,903.88
  5. Step 5: Solve for x
    x = 3,857,192,903.88/91,993.71
  6. Step 6: Final answer
    x = 41,928.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.