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Finding the Fourth Proportional to 65,969.73, 98,721 and 41,021.52

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Solution

The fourth proportional to 65,969.73, 98,721 and 41,021.52 is: 61,387.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,969.73 : 98,721 = 41,021.52 : x
  2. Step 2: Convert to fraction form
    65,969.73/98,721 = 41,021.52/x
  3. Step 3: Cross multiply
    65,969.73x = 98,721 × 41,021.52
  4. Step 4: Simplify right side
    65,969.73x = 4,049,685,475.92
  5. Step 5: Solve for x
    x = 4,049,685,475.92/65,969.73
  6. Step 6: Final answer
    x = 61,387.03

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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.