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Finding the Fourth Proportional to 28,649.52, 42,960.48 and 22,393.68

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Solution

The fourth proportional to 28,649.52, 42,960.48 and 22,393.68 is: 33,579.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,649.52 : 42,960.48 = 22,393.68 : x
  2. Step 2: Convert to fraction form
    28,649.52/42,960.48 = 22,393.68/x
  3. Step 3: Cross multiply
    28,649.52x = 42,960.48 × 22,393.68
  4. Step 4: Simplify right side
    28,649.52x = 962,043,241.77
  5. Step 5: Solve for x
    x = 962,043,241.77/28,649.52
  6. Step 6: Final answer
    x = 33,579.73

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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.