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Finding the Fourth Proportional to 72,336.80, 108,505.20 and 24,951.80

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Solution

The fourth proportional to 72,336.80, 108,505.20 and 24,951.80 is: 37,427.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,336.80 : 108,505.20 = 24,951.80 : x
  2. Step 2: Convert to fraction form
    72,336.80/108,505.20 = 24,951.80/x
  3. Step 3: Cross multiply
    72,336.80x = 108,505.20 × 24,951.80
  4. Step 4: Simplify right side
    72,336.80x = 2,707,400,049.36
  5. Step 5: Solve for x
    x = 2,707,400,049.36/72,336.80
  6. Step 6: Final answer
    x = 37,427.70

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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.