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Finding the Fourth Proportional to 53,489.68, 80,245.32 and 36,857.68

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Solution

The fourth proportional to 53,489.68, 80,245.32 and 36,857.68 is: 55,293.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,489.68 : 80,245.32 = 36,857.68 : x
  2. Step 2: Convert to fraction form
    53,489.68/80,245.32 = 36,857.68/x
  3. Step 3: Cross multiply
    53,489.68x = 80,245.32 × 36,857.68
  4. Step 4: Simplify right side
    53,489.68x = 2,957,656,326.06
  5. Step 5: Solve for x
    x = 2,957,656,326.06/53,489.68
  6. Step 6: Final answer
    x = 55,293.96

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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.