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Finding the Fourth Proportional to 11,899.17, 16,426.94 and 8,708.92

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Solution

The fourth proportional to 11,899.17, 16,426.94 and 8,708.92 is: 12,022.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,899.17 : 16,426.94 = 8,708.92 : x
  2. Step 2: Convert to fraction form
    11,899.17/16,426.94 = 8,708.92/x
  3. Step 3: Cross multiply
    11,899.17x = 16,426.94 × 8,708.92
  4. Step 4: Simplify right side
    11,899.17x = 143,060,821.69
  5. Step 5: Solve for x
    x = 143,060,821.69/11,899.17
  6. Step 6: Final answer
    x = 12,022.76

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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.