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Finding the Fourth Proportional to 24,489.40, 33,795.06 and 13,311.40

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Solution

The fourth proportional to 24,489.40, 33,795.06 and 13,311.40 is: 18,369.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    24,489.40 : 33,795.06 = 13,311.40 : x
  2. Step 2: Convert to fraction form
    24,489.40/33,795.06 = 13,311.40/x
  3. Step 3: Cross multiply
    24,489.40x = 33,795.06 × 13,311.40
  4. Step 4: Simplify right side
    24,489.40x = 449,859,561.68
  5. Step 5: Solve for x
    x = 449,859,561.68/24,489.40
  6. Step 6: Final answer
    x = 18,369.56

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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.