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Finding the Fourth Proportional to 55,469.92, 76,553.76 and 30,323.20

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Solution

The fourth proportional to 55,469.92, 76,553.76 and 30,323.20 is: 41,848.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,469.92 : 76,553.76 = 30,323.20 : x
  2. Step 2: Convert to fraction form
    55,469.92/76,553.76 = 30,323.20/x
  3. Step 3: Cross multiply
    55,469.92x = 76,553.76 × 30,323.20
  4. Step 4: Simplify right side
    55,469.92x = 2,321,354,975.23
  5. Step 5: Solve for x
    x = 2,321,354,975.23/55,469.92
  6. Step 6: Final answer
    x = 41,848.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.