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Finding the Fourth Proportional to 65,749.34, 98,625.33 and 21,375.99

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Solution

The fourth proportional to 65,749.34, 98,625.33 and 21,375.99 is: 32,064.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,749.34 : 98,625.33 = 21,375.99 : x
  2. Step 2: Convert to fraction form
    65,749.34/98,625.33 = 21,375.99/x
  3. Step 3: Cross multiply
    65,749.34x = 98,625.33 × 21,375.99
  4. Step 4: Simplify right side
    65,749.34x = 2,108,214,067.83
  5. Step 5: Solve for x
    x = 2,108,214,067.83/65,749.34
  6. Step 6: Final answer
    x = 32,064.41

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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.