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Finding the Fourth Proportional to 57,569.72, 79,446.38 and 33,375.40

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Solution

The fourth proportional to 57,569.72, 79,446.38 and 33,375.40 is: 46,058.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,569.72 : 79,446.38 = 33,375.40 : x
  2. Step 2: Convert to fraction form
    57,569.72/79,446.38 = 33,375.40/x
  3. Step 3: Cross multiply
    57,569.72x = 79,446.38 × 33,375.40
  4. Step 4: Simplify right side
    57,569.72x = 2,651,554,711.05
  5. Step 5: Solve for x
    x = 2,651,554,711.05/57,569.72
  6. Step 6: Final answer
    x = 46,058.15

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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.