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Finding the Fourth Proportional to 55,086.98, 82,429.59 and 50,905.22

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Solution

The fourth proportional to 55,086.98, 82,429.59 and 50,905.22 is: 76,172.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,086.98 : 82,429.59 = 50,905.22 : x
  2. Step 2: Convert to fraction form
    55,086.98/82,429.59 = 50,905.22/x
  3. Step 3: Cross multiply
    55,086.98x = 82,429.59 × 50,905.22
  4. Step 4: Simplify right side
    55,086.98x = 4,196,096,413.46
  5. Step 5: Solve for x
    x = 4,196,096,413.46/55,086.98
  6. Step 6: Final answer
    x = 76,172.20

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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.