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Finding the Fourth Proportional to 18,604.39, 25,674.06 and 10,220.89

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Solution

The fourth proportional to 18,604.39, 25,674.06 and 10,220.89 is: 14,104.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,604.39 : 25,674.06 = 10,220.89 : x
  2. Step 2: Convert to fraction form
    18,604.39/25,674.06 = 10,220.89/x
  3. Step 3: Cross multiply
    18,604.39x = 25,674.06 × 10,220.89
  4. Step 4: Simplify right side
    18,604.39x = 262,411,743.11
  5. Step 5: Solve for x
    x = 262,411,743.11/18,604.39
  6. Step 6: Final answer
    x = 14,104.83

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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.