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Finding the Fourth Proportional to 16,409.36, 24,635.92 and 13,959.92

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Solution

The fourth proportional to 16,409.36, 24,635.92 and 13,959.92 is: 20,958.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,409.36 : 24,635.92 = 13,959.92 : x
  2. Step 2: Convert to fraction form
    16,409.36/24,635.92 = 13,959.92/x
  3. Step 3: Cross multiply
    16,409.36x = 24,635.92 × 13,959.92
  4. Step 4: Simplify right side
    16,409.36x = 343,915,472.33
  5. Step 5: Solve for x
    x = 343,915,472.33/16,409.36
  6. Step 6: Final answer
    x = 20,958.49

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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.