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Finding the Fourth Proportional to 66,425.50, 91,662.60 and 37,358.22

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Solution

The fourth proportional to 66,425.50, 91,662.60 and 37,358.22 is: 51,551.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,425.50 : 91,662.60 = 37,358.22 : x
  2. Step 2: Convert to fraction form
    66,425.50/91,662.60 = 37,358.22/x
  3. Step 3: Cross multiply
    66,425.50x = 91,662.60 × 37,358.22
  4. Step 4: Simplify right side
    66,425.50x = 3,424,351,576.57
  5. Step 5: Solve for x
    x = 3,424,351,576.57/66,425.50
  6. Step 6: Final answer
    x = 51,551.76

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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.