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Finding the Fourth Proportional to 55,680.80, 83,409.80 and 33,481.92

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Solution

The fourth proportional to 55,680.80, 83,409.80 and 33,481.92 is: 50,155.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,680.80 : 83,409.80 = 33,481.92 : x
  2. Step 2: Convert to fraction form
    55,680.80/83,409.80 = 33,481.92/x
  3. Step 3: Cross multiply
    55,680.80x = 83,409.80 × 33,481.92
  4. Step 4: Simplify right side
    55,680.80x = 2,792,720,250.82
  5. Step 5: Solve for x
    x = 2,792,720,250.82/55,680.80
  6. Step 6: Final answer
    x = 50,155.89

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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.