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Finding the Fourth Proportional to 11,692.76, 17,540.28 and 4,671.11

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Solution

The fourth proportional to 11,692.76, 17,540.28 and 4,671.11 is: 7,007.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,692.76 : 17,540.28 = 4,671.11 : x
  2. Step 2: Convert to fraction form
    11,692.76/17,540.28 = 4,671.11/x
  3. Step 3: Cross multiply
    11,692.76x = 17,540.28 × 4,671.11
  4. Step 4: Simplify right side
    11,692.76x = 81,932,577.31
  5. Step 5: Solve for x
    x = 81,932,577.31/11,692.76
  6. Step 6: Final answer
    x = 7,007.12

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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.