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Finding the Fourth Proportional to 53,696.44, 80,544.72 and 20,408.68

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Solution

The fourth proportional to 53,696.44, 80,544.72 and 20,408.68 is: 30,613.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,696.44 : 80,544.72 = 20,408.68 : x
  2. Step 2: Convert to fraction form
    53,696.44/80,544.72 = 20,408.68/x
  3. Step 3: Cross multiply
    53,696.44x = 80,544.72 × 20,408.68
  4. Step 4: Simplify right side
    53,696.44x = 1,643,811,416.17
  5. Step 5: Solve for x
    x = 1,643,811,416.17/53,696.44
  6. Step 6: Final answer
    x = 30,613.04

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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.