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Finding the Fourth Proportional to 18,367.38, 25,348.01 and 10,811.98

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Solution

The fourth proportional to 18,367.38, 25,348.01 and 10,811.98 is: 14,921.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,367.38 : 25,348.01 = 10,811.98 : x
  2. Step 2: Convert to fraction form
    18,367.38/25,348.01 = 10,811.98/x
  3. Step 3: Cross multiply
    18,367.38x = 25,348.01 × 10,811.98
  4. Step 4: Simplify right side
    18,367.38x = 274,062,246.01
  5. Step 5: Solve for x
    x = 274,062,246.01/18,367.38
  6. Step 6: Final answer
    x = 14,921.14

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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.