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Finding the Fourth Proportional to 18,797.72, 25,939.49 and 10,298.48

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Solution

The fourth proportional to 18,797.72, 25,939.49 and 10,298.48 is: 14,211.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,797.72 : 25,939.49 = 10,298.48 : x
  2. Step 2: Convert to fraction form
    18,797.72/25,939.49 = 10,298.48/x
  3. Step 3: Cross multiply
    18,797.72x = 25,939.49 × 10,298.48
  4. Step 4: Simplify right side
    18,797.72x = 267,137,137.79
  5. Step 5: Solve for x
    x = 267,137,137.79/18,797.72
  6. Step 6: Final answer
    x = 14,211.15

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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.