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Finding the Fourth Proportional to 65,788.39, 98,692.17 and 20,794.51

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Solution

The fourth proportional to 65,788.39, 98,692.17 and 20,794.51 is: 31,194.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,788.39 : 98,692.17 = 20,794.51 : x
  2. Step 2: Convert to fraction form
    65,788.39/98,692.17 = 20,794.51/x
  3. Step 3: Cross multiply
    65,788.39x = 98,692.17 × 20,794.51
  4. Step 4: Simplify right side
    65,788.39x = 2,052,255,315.99
  5. Step 5: Solve for x
    x = 2,052,255,315.99/65,788.39
  6. Step 6: Final answer
    x = 31,194.79

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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.