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Finding the Fourth Proportional to 43,472.70, 65,190.83 and 13,882.59

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Solution

The fourth proportional to 43,472.70, 65,190.83 and 13,882.59 is: 20,818.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,472.70 : 65,190.83 = 13,882.59 : x
  2. Step 2: Convert to fraction form
    43,472.70/65,190.83 = 13,882.59/x
  3. Step 3: Cross multiply
    43,472.70x = 65,190.83 × 13,882.59
  4. Step 4: Simplify right side
    43,472.70x = 905,017,495.24
  5. Step 5: Solve for x
    x = 905,017,495.24/43,472.70
  6. Step 6: Final answer
    x = 20,818.07

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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.