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Finding the Fourth Proportional to 24,679.92, 36,939.24 and 13,418.40

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Solution

The fourth proportional to 24,679.92, 36,939.24 and 13,418.40 is: 20,083.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    24,679.92 : 36,939.24 = 13,418.40 : x
  2. Step 2: Convert to fraction form
    24,679.92/36,939.24 = 13,418.40/x
  3. Step 3: Cross multiply
    24,679.92x = 36,939.24 × 13,418.40
  4. Step 4: Simplify right side
    24,679.92x = 495,665,498.02
  5. Step 5: Solve for x
    x = 495,665,498.02/24,679.92
  6. Step 6: Final answer
    x = 20,083.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.