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Finding the Fourth Proportional to 61,296.74, 91,952.31 and 21,859.46

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Solution

The fourth proportional to 61,296.74, 91,952.31 and 21,859.46 is: 32,791.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,296.74 : 91,952.31 = 21,859.46 : x
  2. Step 2: Convert to fraction form
    61,296.74/91,952.31 = 21,859.46/x
  3. Step 3: Cross multiply
    61,296.74x = 91,952.31 × 21,859.46
  4. Step 4: Simplify right side
    61,296.74x = 2,010,027,842.35
  5. Step 5: Solve for x
    x = 2,010,027,842.35/61,296.74
  6. Step 6: Final answer
    x = 32,791.76

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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.