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Finding the Fourth Proportional to 89,148.81, 133,692.21 and 25,951.80

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Solution

The fourth proportional to 89,148.81, 133,692.21 and 25,951.80 is: 38,918.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,148.81 : 133,692.21 = 25,951.80 : x
  2. Step 2: Convert to fraction form
    89,148.81/133,692.21 = 25,951.80/x
  3. Step 3: Cross multiply
    89,148.81x = 133,692.21 × 25,951.80
  4. Step 4: Simplify right side
    89,148.81x = 3,469,553,495.48
  5. Step 5: Solve for x
    x = 3,469,553,495.48/89,148.81
  6. Step 6: Final answer
    x = 38,918.67

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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.