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Finding the Fourth Proportional to 65,969.48, 98,720.63 and 41,021.27

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Solution

The fourth proportional to 65,969.48, 98,720.63 and 41,021.27 is: 61,386.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,969.48 : 98,720.63 = 41,021.27 : x
  2. Step 2: Convert to fraction form
    65,969.48/98,720.63 = 41,021.27/x
  3. Step 3: Cross multiply
    65,969.48x = 98,720.63 × 41,021.27
  4. Step 4: Simplify right side
    65,969.48x = 4,049,645,412.69
  5. Step 5: Solve for x
    x = 4,049,645,412.69/65,969.48
  6. Step 6: Final answer
    x = 61,386.66

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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.