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Finding the Fourth Proportional to 55,448.92, 76,600.46 and 47,983.96

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Solution

The fourth proportional to 55,448.92, 76,600.46 and 47,983.96 is: 66,287.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,448.92 : 76,600.46 = 47,983.96 : x
  2. Step 2: Convert to fraction form
    55,448.92/76,600.46 = 47,983.96/x
  3. Step 3: Cross multiply
    55,448.92x = 76,600.46 × 47,983.96
  4. Step 4: Simplify right side
    55,448.92x = 3,675,593,408.62
  5. Step 5: Solve for x
    x = 3,675,593,408.62/55,448.92
  6. Step 6: Final answer
    x = 66,287.92

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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.