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Finding the Fourth Proportional to 28,197.64, 42,250.70 and 16,481.80

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Solution

The fourth proportional to 28,197.64, 42,250.70 and 16,481.80 is: 24,695.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,197.64 : 42,250.70 = 16,481.80 : x
  2. Step 2: Convert to fraction form
    28,197.64/42,250.70 = 16,481.80/x
  3. Step 3: Cross multiply
    28,197.64x = 42,250.70 × 16,481.80
  4. Step 4: Simplify right side
    28,197.64x = 696,367,587.26
  5. Step 5: Solve for x
    x = 696,367,587.26/28,197.64
  6. Step 6: Final answer
    x = 24,695.95

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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.