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Finding the Fourth Proportional to 12,504.96, 18,760.96 and 3,740.32

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Solution

The fourth proportional to 12,504.96, 18,760.96 and 3,740.32 is: 5,611.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,504.96 : 18,760.96 = 3,740.32 : x
  2. Step 2: Convert to fraction form
    12,504.96/18,760.96 = 3,740.32/x
  3. Step 3: Cross multiply
    12,504.96x = 18,760.96 × 3,740.32
  4. Step 4: Simplify right side
    12,504.96x = 70,171,993.91
  5. Step 5: Solve for x
    x = 70,171,993.91/12,504.96
  6. Step 6: Final answer
    x = 5,611.53

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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.