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Finding the Fourth Proportional to 25,305.70, 37,981.59 and 13,469.41

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Solution

The fourth proportional to 25,305.70, 37,981.59 and 13,469.41 is: 20,216.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,305.70 : 37,981.59 = 13,469.41 : x
  2. Step 2: Convert to fraction form
    25,305.70/37,981.59 = 13,469.41/x
  3. Step 3: Cross multiply
    25,305.70x = 37,981.59 × 13,469.41
  4. Step 4: Simplify right side
    25,305.70x = 511,589,608.16
  5. Step 5: Solve for x
    x = 511,589,608.16/25,305.70
  6. Step 6: Final answer
    x = 20,216.38

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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.