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Finding the Fourth Proportional to 11,079.99, 16,620.12 and 3,182.76

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Solution

The fourth proportional to 11,079.99, 16,620.12 and 3,182.76 is: 4,774.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,079.99 : 16,620.12 = 3,182.76 : x
  2. Step 2: Convert to fraction form
    11,079.99/16,620.12 = 3,182.76/x
  3. Step 3: Cross multiply
    11,079.99x = 16,620.12 × 3,182.76
  4. Step 4: Simplify right side
    11,079.99x = 52,897,853.13
  5. Step 5: Solve for x
    x = 52,897,853.13/11,079.99
  6. Step 6: Final answer
    x = 4,774.18

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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.