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Finding the Fourth Proportional to 11,992.94, 16,555.65 and 8,800.59

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Solution

The fourth proportional to 11,992.94, 16,555.65 and 8,800.59 is: 12,148.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,992.94 : 16,555.65 = 8,800.59 : x
  2. Step 2: Convert to fraction form
    11,992.94/16,555.65 = 8,800.59/x
  3. Step 3: Cross multiply
    11,992.94x = 16,555.65 × 8,800.59
  4. Step 4: Simplify right side
    11,992.94x = 145,699,465.83
  5. Step 5: Solve for x
    x = 145,699,465.83/11,992.94
  6. Step 6: Final answer
    x = 12,148.77

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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.