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Finding the Fourth Proportional to 18,772.98, 25,883.19 and 12,046.74

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Solution

The fourth proportional to 18,772.98, 25,883.19 and 12,046.74 is: 16,609.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,772.98 : 25,883.19 = 12,046.74 : x
  2. Step 2: Convert to fraction form
    18,772.98/25,883.19 = 12,046.74/x
  3. Step 3: Cross multiply
    18,772.98x = 25,883.19 × 12,046.74
  4. Step 4: Simplify right side
    18,772.98x = 311,808,060.30
  5. Step 5: Solve for x
    x = 311,808,060.30/18,772.98
  6. Step 6: Final answer
    x = 16,609.41

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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.