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Finding the Fourth Proportional to 57,758.75, 79,707.57 and 33,233.21

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Solution

The fourth proportional to 57,758.75, 79,707.57 and 33,233.21 is: 45,862.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,758.75 : 79,707.57 = 33,233.21 : x
  2. Step 2: Convert to fraction form
    57,758.75/79,707.57 = 33,233.21/x
  3. Step 3: Cross multiply
    57,758.75x = 79,707.57 × 33,233.21
  4. Step 4: Simplify right side
    57,758.75x = 2,648,938,505.79
  5. Step 5: Solve for x
    x = 2,648,938,505.79/57,758.75
  6. Step 6: Final answer
    x = 45,862.12

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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.