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Finding the Fourth Proportional to 18,182.22, 25,106.00 and 11,811.98

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Solution

The fourth proportional to 18,182.22, 25,106.00 and 11,811.98 is: 16,309.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,182.22 : 25,106.00 = 11,811.98 : x
  2. Step 2: Convert to fraction form
    18,182.22/25,106.00 = 11,811.98/x
  3. Step 3: Cross multiply
    18,182.22x = 25,106.00 × 11,811.98
  4. Step 4: Simplify right side
    18,182.22x = 296,551,385.29
  5. Step 5: Solve for x
    x = 296,551,385.29/18,182.22
  6. Step 6: Final answer
    x = 16,309.97

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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.