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Finding the Fourth Proportional to 65,770.89, 98,639.93 and 25,797.99

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Solution

The fourth proportional to 65,770.89, 98,639.93 and 25,797.99 is: 38,690.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,770.89 : 98,639.93 = 25,797.99 : x
  2. Step 2: Convert to fraction form
    65,770.89/98,639.93 = 25,797.99/x
  3. Step 3: Cross multiply
    65,770.89x = 98,639.93 × 25,797.99
  4. Step 4: Simplify right side
    65,770.89x = 2,544,712,217.02
  5. Step 5: Solve for x
    x = 2,544,712,217.02/65,770.89
  6. Step 6: Final answer
    x = 38,690.56

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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.