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Finding the Fourth Proportional to 57,824.40, 86,806.80 and 36,764.40

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Solution

The fourth proportional to 57,824.40, 86,806.80 and 36,764.40 is: 55,191.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,824.40 : 86,806.80 = 36,764.40 : x
  2. Step 2: Convert to fraction form
    57,824.40/86,806.80 = 36,764.40/x
  3. Step 3: Cross multiply
    57,824.40x = 86,806.80 × 36,764.40
  4. Step 4: Simplify right side
    57,824.40x = 3,191,399,917.92
  5. Step 5: Solve for x
    x = 3,191,399,917.92/57,824.40
  6. Step 6: Final answer
    x = 55,191.23

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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.