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Finding the Fourth Proportional to 61,930.54, 85,465.73 and 35,072.66

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Solution

The fourth proportional to 61,930.54, 85,465.73 and 35,072.66 is: 48,401.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,930.54 : 85,465.73 = 35,072.66 : x
  2. Step 2: Convert to fraction form
    61,930.54/85,465.73 = 35,072.66/x
  3. Step 3: Cross multiply
    61,930.54x = 85,465.73 × 35,072.66
  4. Step 4: Simplify right side
    61,930.54x = 2,997,510,791.29
  5. Step 5: Solve for x
    x = 2,997,510,791.29/61,930.54
  6. Step 6: Final answer
    x = 48,401.17

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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.