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Finding the Fourth Proportional to 65,112.60, 97,679.70 and 27,690.60

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Solution

The fourth proportional to 65,112.60, 97,679.70 and 27,690.60 is: 41,540.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,112.60 : 97,679.70 = 27,690.60 : x
  2. Step 2: Convert to fraction form
    65,112.60/97,679.70 = 27,690.60/x
  3. Step 3: Cross multiply
    65,112.60x = 97,679.70 × 27,690.60
  4. Step 4: Simplify right side
    65,112.60x = 2,704,809,500.82
  5. Step 5: Solve for x
    x = 2,704,809,500.82/65,112.60
  6. Step 6: Final answer
    x = 41,540.49

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1.5x scale

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.