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Finding the Fourth Proportional to 18,461.70, 27,692.55 and 8,601.98

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Solution

The fourth proportional to 18,461.70, 27,692.55 and 8,601.98 is: 12,902.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,461.70 : 27,692.55 = 8,601.98 : x
  2. Step 2: Convert to fraction form
    18,461.70/27,692.55 = 8,601.98/x
  3. Step 3: Cross multiply
    18,461.70x = 27,692.55 × 8,601.98
  4. Step 4: Simplify right side
    18,461.70x = 238,210,622.79
  5. Step 5: Solve for x
    x = 238,210,622.79/18,461.70
  6. Step 6: Final answer
    x = 12,902.96

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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.