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Finding the Fourth Proportional to 57,640.86, 79,564.23 and 33,775.26

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Solution

The fourth proportional to 57,640.86, 79,564.23 and 33,775.26 is: 46,621.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,640.86 : 79,564.23 = 33,775.26 : x
  2. Step 2: Convert to fraction form
    57,640.86/79,564.23 = 33,775.26/x
  3. Step 3: Cross multiply
    57,640.86x = 79,564.23 × 33,775.26
  4. Step 4: Simplify right side
    57,640.86x = 2,687,302,554.95
  5. Step 5: Solve for x
    x = 2,687,302,554.95/57,640.86
  6. Step 6: Final answer
    x = 46,621.49

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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.