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Finding the Fourth Proportional to 24,393.81, 33,662.99 and 13,638.83

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Solution

The fourth proportional to 24,393.81, 33,662.99 and 13,638.83 is: 18,821.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    24,393.81 : 33,662.99 = 13,638.83 : x
  2. Step 2: Convert to fraction form
    24,393.81/33,662.99 = 13,638.83/x
  3. Step 3: Cross multiply
    24,393.81x = 33,662.99 × 13,638.83
  4. Step 4: Simplify right side
    24,393.81x = 459,123,561.39
  5. Step 5: Solve for x
    x = 459,123,561.39/24,393.81
  6. Step 6: Final answer
    x = 18,821.31

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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.