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Finding the Fourth Proportional to 65,911.96, 90,958.05 and 35,696.59

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Solution

The fourth proportional to 65,911.96, 90,958.05 and 35,696.59 is: 49,261.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,911.96 : 90,958.05 = 35,696.59 : x
  2. Step 2: Convert to fraction form
    65,911.96/90,958.05 = 35,696.59/x
  3. Step 3: Cross multiply
    65,911.96x = 90,958.05 × 35,696.59
  4. Step 4: Simplify right side
    65,911.96x = 3,246,892,218.05
  5. Step 5: Solve for x
    x = 3,246,892,218.05/65,911.96
  6. Step 6: Final answer
    x = 49,261.05

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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.