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Finding the Fourth Proportional to 11,863.95, 16,372.07 and 6,558.65

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Solution

The fourth proportional to 11,863.95, 16,372.07 and 6,558.65 is: 9,050.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,863.95 : 16,372.07 = 6,558.65 : x
  2. Step 2: Convert to fraction form
    11,863.95/16,372.07 = 6,558.65/x
  3. Step 3: Cross multiply
    11,863.95x = 16,372.07 × 6,558.65
  4. Step 4: Simplify right side
    11,863.95x = 107,378,685.04
  5. Step 5: Solve for x
    x = 107,378,685.04/11,863.95
  6. Step 6: Final answer
    x = 9,050.84

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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.