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Finding the Fourth Proportional to 8,932.62, 13,398.99 and 2,692.65

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Solution

The fourth proportional to 8,932.62, 13,398.99 and 2,692.65 is: 4,038.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,932.62 : 13,398.99 = 2,692.65 : x
  2. Step 2: Convert to fraction form
    8,932.62/13,398.99 = 2,692.65/x
  3. Step 3: Cross multiply
    8,932.62x = 13,398.99 × 2,692.65
  4. Step 4: Simplify right side
    8,932.62x = 36,078,790.42
  5. Step 5: Solve for x
    x = 36,078,790.42/8,932.62
  6. Step 6: Final answer
    x = 4,038.99

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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.