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Finding the Fourth Proportional to 57,578.92, 79,459.06 and 33,384.57

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Solution

The fourth proportional to 57,578.92, 79,459.06 and 33,384.57 is: 46,070.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,578.92 : 79,459.06 = 33,384.57 : x
  2. Step 2: Convert to fraction form
    57,578.92/79,459.06 = 33,384.57/x
  3. Step 3: Cross multiply
    57,578.92x = 79,459.06 × 33,384.57
  4. Step 4: Simplify right side
    57,578.92x = 2,652,706,550.70
  5. Step 5: Solve for x
    x = 2,652,706,550.70/57,578.92
  6. Step 6: Final answer
    x = 46,070.79

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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.