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Finding the Fourth Proportional to 61,190.37, 91,785.53 and 21,749.04

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Solution

The fourth proportional to 61,190.37, 91,785.53 and 21,749.04 is: 32,623.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,190.37 : 91,785.53 = 21,749.04 : x
  2. Step 2: Convert to fraction form
    61,190.37/91,785.53 = 21,749.04/x
  3. Step 3: Cross multiply
    61,190.37x = 91,785.53 × 21,749.04
  4. Step 4: Simplify right side
    61,190.37x = 1,996,247,217.76
  5. Step 5: Solve for x
    x = 1,996,247,217.76/61,190.37
  6. Step 6: Final answer
    x = 32,623.55

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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.