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Finding the Fourth Proportional to 61,226.73, 91,805.58 and 21,226.95

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Solution

The fourth proportional to 61,226.73, 91,805.58 and 21,226.95 is: 31,828.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,226.73 : 91,805.58 = 21,226.95 : x
  2. Step 2: Convert to fraction form
    61,226.73/91,805.58 = 21,226.95/x
  3. Step 3: Cross multiply
    61,226.73x = 91,805.58 × 21,226.95
  4. Step 4: Simplify right side
    61,226.73x = 1,948,752,456.38
  5. Step 5: Solve for x
    x = 1,948,752,456.38/61,226.73
  6. Step 6: Final answer
    x = 31,828.46

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.