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Finding the Fourth Proportional to 61,085.00, 91,605.03 and 21,093.86

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Solution

The fourth proportional to 61,085.00, 91,605.03 and 21,093.86 is: 31,633.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,085.00 : 91,605.03 = 21,093.86 : x
  2. Step 2: Convert to fraction form
    61,085.00/91,605.03 = 21,093.86/x
  3. Step 3: Cross multiply
    61,085.00x = 91,605.03 × 21,093.86
  4. Step 4: Simplify right side
    61,085.00x = 1,932,303,220.09
  5. Step 5: Solve for x
    x = 1,932,303,220.09/61,085.00
  6. Step 6: Final answer
    x = 31,633.03

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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.