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Finding the Fourth Proportional to 61,791.45, 85,275.04 and 34,935.09

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Solution

The fourth proportional to 61,791.45, 85,275.04 and 34,935.09 is: 48,212.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,791.45 : 85,275.04 = 34,935.09 : x
  2. Step 2: Convert to fraction form
    61,791.45/85,275.04 = 34,935.09/x
  3. Step 3: Cross multiply
    61,791.45x = 85,275.04 × 34,935.09
  4. Step 4: Simplify right side
    61,791.45x = 2,979,091,197.15
  5. Step 5: Solve for x
    x = 2,979,091,197.15/61,791.45
  6. Step 6: Final answer
    x = 48,212.03

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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.