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Finding the Fourth Proportional to 71,608.68, 107,361.81 and 33,636.69

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Solution

The fourth proportional to 71,608.68, 107,361.81 and 33,636.69 is: 50,430.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,608.68 : 107,361.81 = 33,636.69 : x
  2. Step 2: Convert to fraction form
    71,608.68/107,361.81 = 33,636.69/x
  3. Step 3: Cross multiply
    71,608.68x = 107,361.81 × 33,636.69
  4. Step 4: Simplify right side
    71,608.68x = 3,611,295,920.81
  5. Step 5: Solve for x
    x = 3,611,295,920.81/71,608.68
  6. Step 6: Final answer
    x = 50,430.98

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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.