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Finding the Fourth Proportional to 16,309.96, 22,507.86 and 8,857.96

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Solution

The fourth proportional to 16,309.96, 22,507.86 and 8,857.96 is: 12,224.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,309.96 : 22,507.86 = 8,857.96 : x
  2. Step 2: Convert to fraction form
    16,309.96/22,507.86 = 8,857.96/x
  3. Step 3: Cross multiply
    16,309.96x = 22,507.86 × 8,857.96
  4. Step 4: Simplify right side
    16,309.96x = 199,373,723.57
  5. Step 5: Solve for x
    x = 199,373,723.57/16,309.96
  6. Step 6: Final answer
    x = 12,224.05

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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.