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Finding the Fourth Proportional to 57,691.51, 79,622.13 and 33,827.70

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Solution

The fourth proportional to 57,691.51, 79,622.13 and 33,827.70 is: 46,686.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,691.51 : 79,622.13 = 33,827.70 : x
  2. Step 2: Convert to fraction form
    57,691.51/79,622.13 = 33,827.70/x
  3. Step 3: Cross multiply
    57,691.51x = 79,622.13 × 33,827.70
  4. Step 4: Simplify right side
    57,691.51x = 2,693,433,527.00
  5. Step 5: Solve for x
    x = 2,693,433,527.00/57,691.51
  6. Step 6: Final answer
    x = 46,686.83

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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.