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Finding the Fourth Proportional to 65,739.20, 98,608.80 and 26,324.60

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Solution

The fourth proportional to 65,739.20, 98,608.80 and 26,324.60 is: 39,486.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,739.20 : 98,608.80 = 26,324.60 : x
  2. Step 2: Convert to fraction form
    65,739.20/98,608.80 = 26,324.60/x
  3. Step 3: Cross multiply
    65,739.20x = 98,608.80 × 26,324.60
  4. Step 4: Simplify right side
    65,739.20x = 2,595,837,216.48
  5. Step 5: Solve for x
    x = 2,595,837,216.48/65,739.20
  6. Step 6: Final answer
    x = 39,486.90

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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.