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Finding the Fourth Proportional to 61,204.85, 84,463.31 and 33,981.38

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Solution

The fourth proportional to 61,204.85, 84,463.31 and 33,981.38 is: 46,894.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,204.85 : 84,463.31 = 33,981.38 : x
  2. Step 2: Convert to fraction form
    61,204.85/84,463.31 = 33,981.38/x
  3. Step 3: Cross multiply
    61,204.85x = 84,463.31 × 33,981.38
  4. Step 4: Simplify right side
    61,204.85x = 2,870,179,495.80
  5. Step 5: Solve for x
    x = 2,870,179,495.80/61,204.85
  6. Step 6: Final answer
    x = 46,894.65

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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.