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Finding the Fourth Proportional to 18,766, 25,886.84 and 12,052.66

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Solution

The fourth proportional to 18,766, 25,886.84 and 12,052.66 is: 16,626.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,766 : 25,886.84 = 12,052.66 : x
  2. Step 2: Convert to fraction form
    18,766/25,886.84 = 12,052.66/x
  3. Step 3: Cross multiply
    18,766x = 25,886.84 × 12,052.66
  4. Step 4: Simplify right side
    18,766x = 312,005,280.99
  5. Step 5: Solve for x
    x = 312,005,280.99/18,766
  6. Step 6: Final answer
    x = 16,626.09

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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.