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Finding the Fourth Proportional to 57,668.64, 79,583.76 and 33,812.52

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Solution

The fourth proportional to 57,668.64, 79,583.76 and 33,812.52 is: 46,661.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,668.64 : 79,583.76 = 33,812.52 : x
  2. Step 2: Convert to fraction form
    57,668.64/79,583.76 = 33,812.52/x
  3. Step 3: Cross multiply
    57,668.64x = 79,583.76 × 33,812.52
  4. Step 4: Simplify right side
    57,668.64x = 2,690,927,476.68
  5. Step 5: Solve for x
    x = 2,690,927,476.68/57,668.64
  6. Step 6: Final answer
    x = 46,661.89

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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.