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Finding the Fourth Proportional to 11,863.88, 16,372.08 and 6,558.92

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Solution

The fourth proportional to 11,863.88, 16,372.08 and 6,558.92 is: 9,051.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,863.88 : 16,372.08 = 6,558.92 : x
  2. Step 2: Convert to fraction form
    11,863.88/16,372.08 = 6,558.92/x
  3. Step 3: Cross multiply
    11,863.88x = 16,372.08 × 6,558.92
  4. Step 4: Simplify right side
    11,863.88x = 107,383,162.95
  5. Step 5: Solve for x
    x = 107,383,162.95/11,863.88
  6. Step 6: Final answer
    x = 9,051.27

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.