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Finding the Fourth Proportional to 70,114.40, 96,759.11 and 39,896.54

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Solution

The fourth proportional to 70,114.40, 96,759.11 and 39,896.54 is: 55,057.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,114.40 : 96,759.11 = 39,896.54 : x
  2. Step 2: Convert to fraction form
    70,114.40/96,759.11 = 39,896.54/x
  3. Step 3: Cross multiply
    70,114.40x = 96,759.11 × 39,896.54
  4. Step 4: Simplify right side
    70,114.40x = 3,860,353,318.43
  5. Step 5: Solve for x
    x = 3,860,353,318.43/70,114.40
  6. Step 6: Final answer
    x = 55,057.93

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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.