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Finding the Fourth Proportional to 65,745.21, 98,642.67 and 39,468.27

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Solution

The fourth proportional to 65,745.21, 98,642.67 and 39,468.27 is: 59,217.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,745.21 : 98,642.67 = 39,468.27 : x
  2. Step 2: Convert to fraction form
    65,745.21/98,642.67 = 39,468.27/x
  3. Step 3: Cross multiply
    65,745.21x = 98,642.67 × 39,468.27
  4. Step 4: Simplify right side
    65,745.21x = 3,893,255,533.08
  5. Step 5: Solve for x
    x = 3,893,255,533.08/65,745.21
  6. Step 6: Final answer
    x = 59,217.33

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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.