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Finding the Fourth Proportional to 54,996.50, 75,914.85 and 32,640.50

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Solution

The fourth proportional to 54,996.50, 75,914.85 and 32,640.50 is: 45,055.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,996.50 : 75,914.85 = 32,640.50 : x
  2. Step 2: Convert to fraction form
    54,996.50/75,914.85 = 32,640.50/x
  3. Step 3: Cross multiply
    54,996.50x = 75,914.85 × 32,640.50
  4. Step 4: Simplify right side
    54,996.50x = 2,477,898,661.43
  5. Step 5: Solve for x
    x = 2,477,898,661.43/54,996.50
  6. Step 6: Final answer
    x = 45,055.57

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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.