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Finding the Fourth Proportional to 18,194.79, 25,106.79 and 10,236.86

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Solution

The fourth proportional to 18,194.79, 25,106.79 and 10,236.86 is: 14,125.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,194.79 : 25,106.79 = 10,236.86 : x
  2. Step 2: Convert to fraction form
    18,194.79/25,106.79 = 10,236.86/x
  3. Step 3: Cross multiply
    18,194.79x = 25,106.79 × 10,236.86
  4. Step 4: Simplify right side
    18,194.79x = 257,014,694.28
  5. Step 5: Solve for x
    x = 257,014,694.28/18,194.79
  6. Step 6: Final answer
    x = 14,125.73

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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.