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Finding the Fourth Proportional to 18,674.40, 25,769.67 and 11,600.70

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Solution

The fourth proportional to 18,674.40, 25,769.67 and 11,600.70 is: 16,008.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,674.40 : 25,769.67 = 11,600.70 : x
  2. Step 2: Convert to fraction form
    18,674.40/25,769.67 = 11,600.70/x
  3. Step 3: Cross multiply
    18,674.40x = 25,769.67 × 11,600.70
  4. Step 4: Simplify right side
    18,674.40x = 298,946,210.77
  5. Step 5: Solve for x
    x = 298,946,210.77/18,674.40
  6. Step 6: Final answer
    x = 16,008.34

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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.