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Finding the Fourth Proportional to 66,395.44, 91,623.38 and 37,322.92

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Solution

The fourth proportional to 66,395.44, 91,623.38 and 37,322.92 is: 51,504.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,395.44 : 91,623.38 = 37,322.92 : x
  2. Step 2: Convert to fraction form
    66,395.44/91,623.38 = 37,322.92/x
  3. Step 3: Cross multiply
    66,395.44x = 91,623.38 × 37,322.92
  4. Step 4: Simplify right side
    66,395.44x = 3,419,652,081.87
  5. Step 5: Solve for x
    x = 3,419,652,081.87/66,395.44
  6. Step 6: Final answer
    x = 51,504.32

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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.