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Finding the Fourth Proportional to 18,604.54, 25,659.39 and 12,237.66

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Solution

The fourth proportional to 18,604.54, 25,659.39 and 12,237.66 is: 16,878.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,604.54 : 25,659.39 = 12,237.66 : x
  2. Step 2: Convert to fraction form
    18,604.54/25,659.39 = 12,237.66/x
  3. Step 3: Cross multiply
    18,604.54x = 25,659.39 × 12,237.66
  4. Step 4: Simplify right side
    18,604.54x = 314,010,890.63
  5. Step 5: Solve for x
    x = 314,010,890.63/18,604.54
  6. Step 6: Final answer
    x = 16,878.19

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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.