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Finding the Fourth Proportional to 11,081.99, 16,622.99 and 6,461.75

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Solution

The fourth proportional to 11,081.99, 16,622.99 and 6,461.75 is: 9,692.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,081.99 : 16,622.99 = 6,461.75 : x
  2. Step 2: Convert to fraction form
    11,081.99/16,622.99 = 6,461.75/x
  3. Step 3: Cross multiply
    11,081.99x = 16,622.99 × 6,461.75
  4. Step 4: Simplify right side
    11,081.99x = 107,413,605.63
  5. Step 5: Solve for x
    x = 107,413,605.63/11,081.99
  6. Step 6: Final answer
    x = 9,692.63

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Half scale
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Double scale
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Similar ratio
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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.