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Finding the Fourth Proportional to 50,661.80, 75,992.62 and 13,725.80

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Solution

The fourth proportional to 50,661.80, 75,992.62 and 13,725.80 is: 20,588.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,661.80 : 75,992.62 = 13,725.80 : x
  2. Step 2: Convert to fraction form
    50,661.80/75,992.62 = 13,725.80/x
  3. Step 3: Cross multiply
    50,661.80x = 75,992.62 × 13,725.80
  4. Step 4: Simplify right side
    50,661.80x = 1,043,059,503.60
  5. Step 5: Solve for x
    x = 1,043,059,503.60/50,661.80
  6. Step 6: Final answer
    x = 20,588.68

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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.