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Finding the Fourth Proportional to 66,843.70, 92,286.25 and 43,011.79

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Solution

The fourth proportional to 66,843.70, 92,286.25 and 43,011.79 is: 59,383.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,843.70 : 92,286.25 = 43,011.79 : x
  2. Step 2: Convert to fraction form
    66,843.70/92,286.25 = 43,011.79/x
  3. Step 3: Cross multiply
    66,843.70x = 92,286.25 × 43,011.79
  4. Step 4: Simplify right side
    66,843.70x = 3,969,396,466.64
  5. Step 5: Solve for x
    x = 3,969,396,466.64/66,843.70
  6. Step 6: Final answer
    x = 59,383.26

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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.