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Finding the Fourth Proportional to 11,855.63, 16,360.17 and 6,549.42

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Solution

The fourth proportional to 11,855.63, 16,360.17 and 6,549.42 is: 9,037.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,855.63 : 16,360.17 = 6,549.42 : x
  2. Step 2: Convert to fraction form
    11,855.63/16,360.17 = 6,549.42/x
  3. Step 3: Cross multiply
    11,855.63x = 16,360.17 × 6,549.42
  4. Step 4: Simplify right side
    11,855.63x = 107,149,624.60
  5. Step 5: Solve for x
    x = 107,149,624.60/11,855.63
  6. Step 6: Final answer
    x = 9,037.87

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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.