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Finding the Fourth Proportional to 65,805.93, 90,811.92 and 35,591.29

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Solution

The fourth proportional to 65,805.93, 90,811.92 and 35,591.29 is: 49,115.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,805.93 : 90,811.92 = 35,591.29 : x
  2. Step 2: Convert to fraction form
    65,805.93/90,811.92 = 35,591.29/x
  3. Step 3: Cross multiply
    65,805.93x = 90,811.92 × 35,591.29
  4. Step 4: Simplify right side
    65,805.93x = 3,232,113,380.18
  5. Step 5: Solve for x
    x = 3,232,113,380.18/65,805.93
  6. Step 6: Final answer
    x = 49,115.84

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.