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Finding the Fourth Proportional to 18,601.38, 25,672.01 and 10,644.75

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Solution

The fourth proportional to 18,601.38, 25,672.01 and 10,644.75 is: 14,690.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,601.38 : 25,672.01 = 10,644.75 : x
  2. Step 2: Convert to fraction form
    18,601.38/25,672.01 = 10,644.75/x
  3. Step 3: Cross multiply
    18,601.38x = 25,672.01 × 10,644.75
  4. Step 4: Simplify right side
    18,601.38x = 273,272,075.22
  5. Step 5: Solve for x
    x = 273,272,075.22/18,601.38
  6. Step 6: Final answer
    x = 14,690.96

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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.