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Finding the Fourth Proportional to 57,907.78, 79,911.97 and 32,757.28

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Solution

The fourth proportional to 57,907.78, 79,911.97 and 32,757.28 is: 45,204.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,907.78 : 79,911.97 = 32,757.28 : x
  2. Step 2: Convert to fraction form
    57,907.78/79,911.97 = 32,757.28/x
  3. Step 3: Cross multiply
    57,907.78x = 79,911.97 × 32,757.28
  4. Step 4: Simplify right side
    57,907.78x = 2,617,698,776.64
  5. Step 5: Solve for x
    x = 2,617,698,776.64/57,907.78
  6. Step 6: Final answer
    x = 45,204.61

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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.