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Finding the Fourth Proportional to 57,902.40, 79,902.72 and 32,751.36

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Solution

The fourth proportional to 57,902.40, 79,902.72 and 32,751.36 is: 45,195.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,902.40 : 79,902.72 = 32,751.36 : x
  2. Step 2: Convert to fraction form
    57,902.40/79,902.72 = 32,751.36/x
  3. Step 3: Cross multiply
    57,902.40x = 79,902.72 × 32,751.36
  4. Step 4: Simplify right side
    57,902.40x = 2,616,922,747.70
  5. Step 5: Solve for x
    x = 2,616,922,747.70/57,902.40
  6. Step 6: Final answer
    x = 45,195.41

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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.