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Finding the Fourth Proportional to 30,361.68, 45,533.64 and 10,636.56

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Solution

The fourth proportional to 30,361.68, 45,533.64 and 10,636.56 is: 15,951.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,361.68 : 45,533.64 = 10,636.56 : x
  2. Step 2: Convert to fraction form
    30,361.68/45,533.64 = 10,636.56/x
  3. Step 3: Cross multiply
    30,361.68x = 45,533.64 × 10,636.56
  4. Step 4: Simplify right side
    30,361.68x = 484,321,293.88
  5. Step 5: Solve for x
    x = 484,321,293.88/30,361.68
  6. Step 6: Final answer
    x = 15,951.73

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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.