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Finding the Fourth Proportional to 85,496.44, 117,984.84 and 47,770.72

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Solution

The fourth proportional to 85,496.44, 117,984.84 and 47,770.72 is: 65,923.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,496.44 : 117,984.84 = 47,770.72 : x
  2. Step 2: Convert to fraction form
    85,496.44/117,984.84 = 47,770.72/x
  3. Step 3: Cross multiply
    85,496.44x = 117,984.84 × 47,770.72
  4. Step 4: Simplify right side
    85,496.44x = 5,636,220,755.88
  5. Step 5: Solve for x
    x = 5,636,220,755.88/85,496.44
  6. Step 6: Final answer
    x = 65,923.46

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1.5x scale

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.