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Finding the Fourth Proportional to 70,493.40, 105,739.38 and 23,745.96

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Solution

The fourth proportional to 70,493.40, 105,739.38 and 23,745.96 is: 35,618.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,493.40 : 105,739.38 = 23,745.96 : x
  2. Step 2: Convert to fraction form
    70,493.40/105,739.38 = 23,745.96/x
  3. Step 3: Cross multiply
    70,493.40x = 105,739.38 × 23,745.96
  4. Step 4: Simplify right side
    70,493.40x = 2,510,883,087.90
  5. Step 5: Solve for x
    x = 2,510,883,087.90/70,493.40
  6. Step 6: Final answer
    x = 35,618.70

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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.