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Finding the Fourth Proportional to 57,836.30, 79,782.03 and 33,634.61

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Solution

The fourth proportional to 57,836.30, 79,782.03 and 33,634.61 is: 46,397.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,836.30 : 79,782.03 = 33,634.61 : x
  2. Step 2: Convert to fraction form
    57,836.30/79,782.03 = 33,634.61/x
  3. Step 3: Cross multiply
    57,836.30x = 79,782.03 × 33,634.61
  4. Step 4: Simplify right side
    57,836.30x = 2,683,437,364.33
  5. Step 5: Solve for x
    x = 2,683,437,364.33/57,836.30
  6. Step 6: Final answer
    x = 46,397.12

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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.