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Finding the Fourth Proportional to 11,015.70, 16,523.55 and 7,305.90

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Solution

The fourth proportional to 11,015.70, 16,523.55 and 7,305.90 is: 10,958.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,015.70 : 16,523.55 = 7,305.90 : x
  2. Step 2: Convert to fraction form
    11,015.70/16,523.55 = 7,305.90/x
  3. Step 3: Cross multiply
    11,015.70x = 16,523.55 × 7,305.90
  4. Step 4: Simplify right side
    11,015.70x = 120,719,403.95
  5. Step 5: Solve for x
    x = 120,719,403.95/11,015.70
  6. Step 6: Final answer
    x = 10,958.85

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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.