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Finding the Fourth Proportional to 18,530, 25,551.53 and 14,941.19

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Solution

The fourth proportional to 18,530, 25,551.53 and 14,941.19 is: 20,602.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,530 : 25,551.53 = 14,941.19 : x
  2. Step 2: Convert to fraction form
    18,530/25,551.53 = 14,941.19/x
  3. Step 3: Cross multiply
    18,530x = 25,551.53 × 14,941.19
  4. Step 4: Simplify right side
    18,530x = 381,770,264.52
  5. Step 5: Solve for x
    x = 381,770,264.52/18,530
  6. Step 6: Final answer
    x = 20,602.82

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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.