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Finding the Fourth Proportional to 72,213.60, 108,323.22 and 22,289.24

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Solution

The fourth proportional to 72,213.60, 108,323.22 and 22,289.24 is: 33,434.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,213.60 : 108,323.22 = 22,289.24 : x
  2. Step 2: Convert to fraction form
    72,213.60/108,323.22 = 22,289.24/x
  3. Step 3: Cross multiply
    72,213.60x = 108,323.22 × 22,289.24
  4. Step 4: Simplify right side
    72,213.60x = 2,414,442,248.15
  5. Step 5: Solve for x
    x = 2,414,442,248.15/72,213.60
  6. Step 6: Final answer
    x = 33,434.73

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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.