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Finding the Fourth Proportional to 8,692.65, 13,040.33 and 2,847.42

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Solution

The fourth proportional to 8,692.65, 13,040.33 and 2,847.42 is: 4,271.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,692.65 : 13,040.33 = 2,847.42 : x
  2. Step 2: Convert to fraction form
    8,692.65/13,040.33 = 2,847.42/x
  3. Step 3: Cross multiply
    8,692.65x = 13,040.33 × 2,847.42
  4. Step 4: Simplify right side
    8,692.65x = 37,131,282.21
  5. Step 5: Solve for x
    x = 37,131,282.21/8,692.65
  6. Step 6: Final answer
    x = 4,271.57

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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.