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Finding the Fourth Proportional to 65,969.22, 98,720.25 and 41,021.02

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Solution

The fourth proportional to 65,969.22, 98,720.25 and 41,021.02 is: 61,386.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,969.22 : 98,720.25 = 41,021.02 : x
  2. Step 2: Convert to fraction form
    65,969.22/98,720.25 = 41,021.02/x
  3. Step 3: Cross multiply
    65,969.22x = 98,720.25 × 41,021.02
  4. Step 4: Simplify right side
    65,969.22x = 4,049,605,349.66
  5. Step 5: Solve for x
    x = 4,049,605,349.66/65,969.22
  6. Step 6: Final answer
    x = 61,386.28

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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.