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Finding the Fourth Proportional to 8,932.61, 13,401.15 and 2,692.49

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Solution

The fourth proportional to 8,932.61, 13,401.15 and 2,692.49 is: 4,039.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,932.61 : 13,401.15 = 2,692.49 : x
  2. Step 2: Convert to fraction form
    8,932.61/13,401.15 = 2,692.49/x
  3. Step 3: Cross multiply
    8,932.61x = 13,401.15 × 2,692.49
  4. Step 4: Simplify right side
    8,932.61x = 36,082,385.26
  5. Step 5: Solve for x
    x = 36,082,385.26/8,932.61
  6. Step 6: Final answer
    x = 4,039.40

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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.