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Finding the Fourth Proportional to 53,951.93, 80,928.65 and 20,673.68

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Solution

The fourth proportional to 53,951.93, 80,928.65 and 20,673.68 is: 31,010.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,951.93 : 80,928.65 = 20,673.68 : x
  2. Step 2: Convert to fraction form
    53,951.93/80,928.65 = 20,673.68/x
  3. Step 3: Cross multiply
    53,951.93x = 80,928.65 × 20,673.68
  4. Step 4: Simplify right side
    53,951.93x = 1,673,093,012.93
  5. Step 5: Solve for x
    x = 1,673,093,012.93/53,951.93
  6. Step 6: Final answer
    x = 31,010.81

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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.