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Finding the Fourth Proportional to 57,740.88, 79,694.28 and 33,880.08

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Solution

The fourth proportional to 57,740.88, 79,694.28 and 33,880.08 is: 46,761.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,740.88 : 79,694.28 = 33,880.08 : x
  2. Step 2: Convert to fraction form
    57,740.88/79,694.28 = 33,880.08/x
  3. Step 3: Cross multiply
    57,740.88x = 79,694.28 × 33,880.08
  4. Step 4: Simplify right side
    57,740.88x = 2,700,048,581.94
  5. Step 5: Solve for x
    x = 2,700,048,581.94/57,740.88
  6. Step 6: Final answer
    x = 46,761.47

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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.