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Finding the Fourth Proportional to 18,804.66, 25,942.08 and 12,089.04

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Solution

The fourth proportional to 18,804.66, 25,942.08 and 12,089.04 is: 16,677.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,804.66 : 25,942.08 = 12,089.04 : x
  2. Step 2: Convert to fraction form
    18,804.66/25,942.08 = 12,089.04/x
  3. Step 3: Cross multiply
    18,804.66x = 25,942.08 × 12,089.04
  4. Step 4: Simplify right side
    18,804.66x = 313,614,842.80
  5. Step 5: Solve for x
    x = 313,614,842.80/18,804.66
  6. Step 6: Final answer
    x = 16,677.51

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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.