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Finding the Fourth Proportional to 57,531.13, 79,392.94 and 33,662.42

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Solution

The fourth proportional to 57,531.13, 79,392.94 and 33,662.42 is: 46,454.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,531.13 : 79,392.94 = 33,662.42 : x
  2. Step 2: Convert to fraction form
    57,531.13/79,392.94 = 33,662.42/x
  3. Step 3: Cross multiply
    57,531.13x = 79,392.94 × 33,662.42
  4. Step 4: Simplify right side
    57,531.13x = 2,672,558,307.92
  5. Step 5: Solve for x
    x = 2,672,558,307.92/57,531.13
  6. Step 6: Final answer
    x = 46,454.13

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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.