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Finding the Fourth Proportional to 11,998.49, 16,557.89 and 6,692.99

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Solution

The fourth proportional to 11,998.49, 16,557.89 and 6,692.99 is: 9,236.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,998.49 : 16,557.89 = 6,692.99 : x
  2. Step 2: Convert to fraction form
    11,998.49/16,557.89 = 6,692.99/x
  3. Step 3: Cross multiply
    11,998.49x = 16,557.89 × 6,692.99
  4. Step 4: Simplify right side
    11,998.49x = 110,821,675.94
  5. Step 5: Solve for x
    x = 110,821,675.94/11,998.49
  6. Step 6: Final answer
    x = 9,236.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.