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Finding the Fourth Proportional to 53,197.44, 79,728.28 and 28,249.44

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Solution

The fourth proportional to 53,197.44, 79,728.28 and 28,249.44 is: 42,338.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,197.44 : 79,728.28 = 28,249.44 : x
  2. Step 2: Convert to fraction form
    53,197.44/79,728.28 = 28,249.44/x
  3. Step 3: Cross multiply
    53,197.44x = 79,728.28 × 28,249.44
  4. Step 4: Simplify right side
    53,197.44x = 2,252,279,262.16
  5. Step 5: Solve for x
    x = 2,252,279,262.16/53,197.44
  6. Step 6: Final answer
    x = 42,338.11

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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.