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Finding the Fourth Proportional to 66,230.16, 91,410.60 and 37,954.80

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Solution

The fourth proportional to 66,230.16, 91,410.60 and 37,954.80 is: 52,385.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,230.16 : 91,410.60 = 37,954.80 : x
  2. Step 2: Convert to fraction form
    66,230.16/91,410.60 = 37,954.80/x
  3. Step 3: Cross multiply
    66,230.16x = 91,410.60 × 37,954.80
  4. Step 4: Simplify right side
    66,230.16x = 3,469,471,040.88
  5. Step 5: Solve for x
    x = 3,469,471,040.88/66,230.16
  6. Step 6: Final answer
    x = 52,385.06

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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.